tag:blogger.com,1999:blog-42444265335073268052024-03-29T11:27:58.522+08:00屋頂上的天文學家康德說:「世界上只有兩樣東西值得我們敬畏:一個是我們心中崇高的道德準則,一個是我們頭頂的星空。」
在這裡,跟著屋頂上的天文學家一起仰望星空,在科學與神話的世界裡,探索宇宙的奧秘!wildfendihttp://www.blogger.com/profile/02052490045327195771noreply@blogger.comBlogger240125tag:blogger.com,1999:blog-4244426533507326805.post-5807153218191780442024-01-08T14:13:00.000+08:002024-01-08T14:13:47.751+08:00 南半球有南極星嗎?<p><span style="font-size: large;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;">居住在北半球的人可以用</span><a href="https://roofastro.blogspot.com/2023/11/blog-post.html" style="text-decoration-line: none;"><span style="color: #1155cc; font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration-line: underline; text-decoration-skip-ink: none; vertical-align: baseline; white-space-collapse: preserve;">北極星</span></a><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;">辨識方向,南半球有南極星嗎?現在南半球並沒有南極星,但是現在沒有不表示以前沒有。</span></span></p><span id="docs-internal-guid-3c8ac3cc-7fff-5c44-c669-a79fbfb00fba"><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000; font-size: x-large;">塔斯馬尼亞島原住民的南極星</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">塔斯馬尼亞島位在澳大利亞南方,兩者隔著巴斯海峽,塔斯馬尼亞原住民有一個世世代代相傳的口述歷史。原住民的祖先從遙遠北方走到塔斯馬尼亞,然後海水淹沒他們走過的地方,塔斯馬尼亞變成一座島。另外,南方的天空曾經有一顆亮星,它在天空的位置固定不動。這顆南方亮星聽起來像是靠近天球南極,所以看起來才不會移動,就像北半球的北極星一樣,原住民口中的亮星是一顆南極星。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">19世紀最早聽聞這個口述歷史的歐洲人覺得很疑惑,因為南半球並沒有南極星,而且塔斯馬尼亞島跟澳大利亞隔著巴斯海峽,原住民的祖先如何跨海步行走到塔斯馬尼亞島?會不會口述歷史只是傳說?</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">根據近代科學家的研究,最近一次冰河期(距今1萬8千年到2萬年之間),地球上許多水都凍結在南北極和陸地上的冰河,海平面比現在低,塔斯馬尼亞島跟澳洲大陸之間有陸橋相連,原住民的祖先透過這陸橋走到塔斯馬尼亞。後來地球溫度升高,凍結的冰融化,海平面升高,距今大約1萬2千年前,陸橋被上升的海水淹沒,塔斯馬尼亞變成一座海水圍繞的島。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">當時的原住民夜晚往南方看,可以看見一顆亮星靠近南極的位置,這顆亮星是老人星。老人星大約在1萬4千年前最靠近南極,離那時的正南極不到10度,是當時的南極星。後來因為歲差,老人星漸漸遠離南極,現在即使北半球的台灣都可以看見這顆全天第二亮的恆星。</span></span></p><span style="font-size: large;"><br /><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="border: none; display: inline-block; height: 401px; overflow: hidden; width: 602px;"><span style="font-size: large;"><img height="401" src="https://lh7-us.googleusercontent.com/YcO5T8bhN_2Bgw1CNk8tqgXGy9NJHE7jWC1comQ2IFwIomq2-OSZCCvvk3RaHhhMHon87RnrqssAWVdoUqr8R-mj2yf9zgyDteXOs40SG1s_zkocdAtgF6BzojvEzMGT6ti5T8CcZS30u_HSYLE3t6o" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">老人星的緯度相當低,台灣可以在南方地平線上看見這顆亮星。2023/8/29清晨,李昫岱攝於台南</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">經過科學家的抽絲剝繭,解開塔斯馬尼亞原住民口述歷史之謎,令人驚訝的是口述歷史居然可以代代相傳達1萬多年。</span></span></p><span style="font-size: large;"><br /><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="border: none; display: inline-block; height: 534px; overflow: hidden; width: 535px;"><span style="font-size: large;"><img height="534" src="https://lh7-us.googleusercontent.com/qL3XDZX_wS37ld8yqXdV8nBhFGeEY29LIspTCZEgYjfTUqrhjoEgQX2JUgQf14XSrnqAzaEZb_R6Qg_lYGcMIfF1x6ceWlHWO7AAfsSTe53_pLUAQHGy1o0YHzEJxnnAIP5GusVPzv8S7HqytAEsL28" style="margin-left: 0px; margin-top: 0px;" width="535" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">地球自轉軸方向會緩慢移動,以26000年的週期在天空畫一個圓。圖中的圓是南極移動的軌跡,數字是公元年,現在南極沒有南極星,不過公元前12000年時,老人星靠近南極,是當時的南極星。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">當人類從澳洲遷徙到塔斯馬尼亞時,歐亞大陸與美洲阿拉斯加之間的白令海峽也形成陸橋,這讓人類由這個陸橋從亞洲遷徙到美洲,成為後來的美洲原住民。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">1萬4千年前老人星還是南極星時,北半球的北極星是哪一顆呢?當時最靠近北極的亮星是織女,老人星與織女星是指引人類探索新世界的南極星與北極星。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-size: large;">原文章刊登在<a href="https://www.natgeomedia.com/science/article/content-16728.html?fbclid=IwAR2N6dU9SnrQQx_XWHNHx-lxAMjuypPUl-TX2S-XmVVAP44Jlw4iScl1lfE">國家地理官網</a></span></p><br /></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-49371060062200226902023-12-29T15:23:00.006+08:002023-12-30T08:54:57.759+08:00 2024年不能錯過的天象<p><span style="font-size: large;"><span face="Arial, sans-serif" style="white-space-collapse: preserve;">2024年有哪些令人期待的天象呢?</span></span></p><p><span style="font-size: large;"><span face="Arial, sans-serif" style="white-space-collapse: preserve;">北半球可能出現期待二十多年的大彗星,非常高的機率可以達到肉眼可見的亮度。另外還有月掩土星、月掩角宿一與相距很近的行星合,喜歡星空的你不要錯過了!</span></span></p><p><span style="font-size: large;"><span face="Arial, sans-serif" style="white-space-collapse: preserve;">以下天象發生的時間都是台灣時間,發生的時刻跟觀測者所在的地點有關,可能會有幾分鐘的差距。</span></span></p><span id="docs-internal-guid-85f93be0-7fff-53cf-0171-f734cd6ddcb7"><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000; font-size: x-large;">彗星</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-size: large;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;">今年有兩顆彗星值得關注,一顆是短週期彗星,12P/Pons-Brooks,週期71年;另一顆是長週期彗星,C/2023 A3 (Tsuchinshan-ATLAS)。這兩顆彗星都可能用肉眼看見,尤其是C/2023 A3彗星,</span><a href="http://www.aerith.net/comet/catalog/2023A3/2023A3.html" style="text-decoration-line: none;"><span face="Arial, sans-serif" style="color: #1155cc; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration-line: underline; text-decoration-skip-ink: none; vertical-align: baseline; white-space-collapse: preserve;">吉田誠一</span></a><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;">預測0等,</span><a href="http://astro.vanbuitenen.nl/comet/2023A3" style="text-decoration-line: none;"><span face="Arial, sans-serif" style="color: #1155cc; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration-line: underline; text-decoration-skip-ink: none; vertical-align: baseline; white-space-collapse: preserve;">astro.vanbuitenen.n</span></a><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;">預測-1等,</span><a href="https://www.cobs.si/comet/2410/" style="text-decoration-line: none;"><span face="Arial, sans-serif" style="color: #1155cc; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; text-decoration-line: underline; text-decoration-skip-ink: none; vertical-align: baseline; white-space-collapse: preserve;">COBS</span></a><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;">預測-3.7等,非常值得期待。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">4月21日(農曆十三),12P/Pons-Brooks彗星近日點★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">龐士-布魯克斯(12P/Pons-Brooks)彗星亮度達到最亮~4等,肉眼有機會看見,彗星出現在日落後的西方。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">9月27日(農曆廿五),C/2023 A3 (Tsuchinshan-ATLAS)過近日點★★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日出前的東方地平線上很有機會用肉眼看見C/2023 A3彗星。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"></p><div class="separator" style="clear: both; text-align: center;"><div class="separator" style="clear: both; text-align: center;"><span id="docs-internal-guid-d8fbe021-7fff-f59c-053a-8083b5f19817"><span face="Arial, sans-serif" style="font-size: 11pt; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"></span></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh02f7BzwQgmKsp9Ls_Mcl1g3h_sg6Q5gZkLu2Ax3wZJ2SzzPvMAxS61BKdFhGnlnck0dztqxzUcj_BodYP9EeMHWnRO-1UL8PHL3kwPBVovEC-rF7ZXxyMvrdSNOMC7uu3YaupIxxJLnwIyKkVU3cgyHsW8xKgh32aZINLO3qx0pZ4UrG4e-1O8SZklL0E/s3038/%E6%B5%B7%E7%88%BE-%E5%8D%9A%E6%99%AE%E5%BD%97%E6%98%9F2.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3038" data-original-width="2986" height="553" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh02f7BzwQgmKsp9Ls_Mcl1g3h_sg6Q5gZkLu2Ax3wZJ2SzzPvMAxS61BKdFhGnlnck0dztqxzUcj_BodYP9EeMHWnRO-1UL8PHL3kwPBVovEC-rF7ZXxyMvrdSNOMC7uu3YaupIxxJLnwIyKkVU3cgyHsW8xKgh32aZINLO3qx0pZ4UrG4e-1O8SZklL0E/w544-h553/%E6%B5%B7%E7%88%BE-%E5%8D%9A%E6%99%AE%E5%BD%97%E6%98%9F2.jpg" width="544" /></a></div></div><div class="separator" style="clear: both; text-align: center;"><span style="font-size: large; text-align: left; white-space-collapse: preserve;">C/2023 A3可能會成為海爾-博普之後北半球能看見最亮的彗星。海爾-博普彗星,1997/4 李昫岱攝於合歡山。</span></div></div><p></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">10月12日(農曆初十),C/2023 A3 (Tsuchinshan-ATLAS)最靠近地球★★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日落後的西方地平線上很有機會用肉眼看見C/2023 A3彗星,彗星在這幾天達到最亮。</span></span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000; font-size: x-large;">土星與月亮</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">今年月亮與土星似乎特別有緣,兩個天體有幾次靠得很近,甚至發生月掩土星,相當值得期待。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">7月25日(農曆二十),月掩土星★★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日出前月亮遮掩土星,掩入時間約5:06,日出(約5:27)後復出(約5:59)。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">9月17日(農曆十五),土星合月★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">土星與月亮相距約1度</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">10月15日(農曆十三),月掩土星★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">台灣不可見,清晨,月落(3:14)後才發生月掩土星。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">12月8日(農曆初八),土星合月★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">土星非常靠近月亮,位在月亮的邊緣,土星最靠近月亮的時間大約是16:50。</span></span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000; font-size: x-large;">行星合</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">今年有四次相當靠近的行星合,相距都小於月亮的直徑0.5度,兩顆行星這麼靠近相當難得。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="border: none; display: inline-block; height: 486px; overflow: hidden; width: 393px;"><span style="font-size: large;"><img height="486" src="https://lh7-us.googleusercontent.com/2THtTH9XqvPjTfGEqvH5N5ygyTJTDilweWRk6JSBnamFV3w8FvRkktAJntNhrTGPhEFmzYLAj57oJ44KXzj0zRKwhukp_Uqt6PbfIyNgoSdu131E3TmsgbJ1yNTaj4jSaE5uy66nZWyIgLNjpQ2wdgM" style="margin-left: 0px; margin-top: 0px;" width="393" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">土星合火星,兩行星相距約0.3度。2022/4/5李昫岱攝於台南安平</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">1月28日(農曆十八),火星合水星★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日出前的東方,火星與水星靠得相當近,兩者相距約0.3度,比月亮的直徑0.5度還小。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">3月22日(農曆十三),土星合金星★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日出前的東方,土星與金星靠得相當近,兩者相距約0.3度,比月亮的直徑0.5度還小。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">4月11日(農曆初三),土星合火星★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日出前的東方,土星與火星靠得相當近,兩者相距約0.5度</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">8月15日,木星合火星★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日出前的東方,可以看見木星合火星,兩者相距約0.3度,比月亮的直徑0.5度還小。</span></span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000; font-size: x-large;">雙行星合月</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">兩顆行星在天空中靠近,如果月亮出現在附近,就會發生兩行星同時合月,今年出現4次雙行星合月,不要錯過了。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">1月10日(農曆廿九),水星合月,火星合月★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日出前的東方,可以看見水星合月與火星合月,三個天體約略排成正三角形。</span></span></p><div><span><span style="font-size: large;"><br /></span></span></div><span id="docs-internal-guid-92ea609e-7fff-d59c-763c-6d2a3178dcfb"><div style="text-align: center;"><span style="font-size: large;"><img height="477" src="https://lh7-us.googleusercontent.com/HLw3j49BnVzMQ_nP2JcHETm5fg5FjZcjatbDmXOkwGNM_4-0YwKyrghdU59SQFS4C3o593ehp2ddY3RflhS1Bflm8x6KKTBGYPQgbbKHUXO5f6SmOBQ6zGOb7lKaMnDw4oS5LaweCystrQS6Si9dOf0" style="font-family: Arial, sans-serif; margin-left: 0px; margin-top: 0px; white-space-collapse: preserve;" width="470" /></span></div></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-size: large;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">雙行星合月:土星合月與木星合月。2020/12/17李昫岱攝於台南永康</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">2月8日(農曆廿九),金星合月,火星合月★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日出前的東方,可以看見金星合月與火星合月,三個天體約略排成正三角形。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">4月6日(農曆廿八),火星合月,土星合月★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日出前的東方,可以看見火星合月與土星合月。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">8月6日(農曆初三),金星合水星、水星合月、金星合月★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日落後的西方,水星、金星與眉月三個天體聚集在一起,同一天合,相當難得。金星與水星相距約6度。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="border: none; display: inline-block; height: 624px; overflow: hidden; width: 417px;"><span style="font-size: large;"><img height="624" src="https://lh7-us.googleusercontent.com/HVYojrnVwGYwGKP7KRqiXT5_wkhdzeaeMQh5dJD2XTT5kosfDLfdjHbzItnxDRkr22tnPYMBwvgTnergKOciP_si8pDMhc26VfTvVAKzXqMNuErVYkZQeNCr2_CRl03SqL_CFQKPXbSpfk5CcXAJy4M" style="margin-left: 0px; margin-top: 0px;" width="417" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">土星合金星、土星合月與金星合月,三個天體同一天合。2023/1/23 李昫岱攝於台南安平</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000; font-size: x-large;">月掩角宿一</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">角宿一是黃道附近的亮星,今年發生兩次月掩角宿一的現象,一次是上弦月,另一次是下弦月,月亮不是特別亮,相當適合觀賞。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">8月10日(農曆初七),月掩角宿一★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">日落(18:35)後發生月掩角宿一,掩入時間約19:00,復出時間約20:15。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">12月25日(農曆廿五),月掩角宿一★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">清晨,下弦月東升後,角宿一從月亮亮緣掩入,掩入時間大約是2:06,角宿一復出時間約3:06。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000; font-size: x-large;">流星雨</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">今年的三大流星雨中,象限儀座和英仙座流星雨需要避開月光,才能看見較暗、較多流星,雙子座則接近滿月,觀賞條件比較不理想。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">1月4日(農曆廿三),象限儀座流星雨極大★★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">象限儀座流星雨極大期發生在台灣時間17:00,入夜後就可觀賞,隔天凌晨0:30下弦月升起後,月光會影響流星雨觀賞。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">8月12日(農曆初九),英仙座流星雨極大★★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">英仙座流星雨極大期發生在台灣時間:21:00-24:00,月落後(23:00)較適合觀看流星雨。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #660000; font-size: large;">12月14日(農曆十四),雙子座流星雨極大★★</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">雙子座流星雨極大期發生時間接近滿月,月亮會降低看見的流星數,極大期預報的時間是台灣早上9:00。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span face="Arial, sans-serif" style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">祝 觀星愉快!</span></span></p></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-52279667392756144142023-11-08T13:05:00.000+08:002023-11-08T13:05:23.151+08:00北極星是哪一顆?<p><span style="font-family: Arial, sans-serif; white-space-collapse: preserve;"><span style="font-size: large;">有星星的夜晚,仔細觀察會發現星星會逆時鐘畫圓弧,只有一顆例外,北極星。星空中北極星不像其他星會移動,北極星一直在同一位置,所以找到北極星就找到北方。</span></span></p><span id="docs-internal-guid-7e322350-7fff-1a40-5279-e74df2a6c194"><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">用一個簡單的方法驗證,把相機或手機用三腳架固定,朝北方長時間曝光。拍完的照片中那顆幾乎不動的星就是北極星,其他的星星以北極星為圓心畫出圓弧軌跡。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">北極星為什麼這麼特別?因為地球的自轉軸正好指向它,所以北極星幾乎不動,其他的星則隨著地球自轉而移動。</span></span></p><span style="font-size: large;"><br /><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="border: none; display: inline-block; height: 368px; overflow: hidden; width: 553px;"><span style="font-size: large;"><img height="368" src="https://lh7-us.googleusercontent.com/vP9-JzZgrPMFa2QvJ5y-e5mG4Fdra8y77TUXJLmSQLuBzC31ZRZ__XCRwUfqirxTo0o5lH2IFSzVOfX_JY-9NWVwxYRqKblNaEGk2eB8Ey1k_ClFodx80mE8qLWGPLfJkEduyh2_nuwek7lQrItuuVE" style="margin-left: 0px; margin-top: 0px;" width="553" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">圖說:照片中星星隨著時間轉動留下圓弧軌跡,唯一幾乎不動的亮點是北極星。2023/8/15,李昫岱攝於台南鹽水溪出海口。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">天空中星星那麼多顆,哪一顆才是北極星呢?春夏時,用北斗七星勺口的兩顆星延伸五倍距離找到北極星。秋冬時,則用W或M型的仙后座,一側兩顆星連線與另一側兩顆星連線的交集,再跟中間星的連線延伸五倍也可以找到北極星。</span></span></p><span style="font-size: large;"><br /><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="border: none; display: inline-block; height: 323px; overflow: hidden; width: 546px;"><span style="font-size: large;"><img height="323" src="https://lh7-us.googleusercontent.com/UNzqRKkAHmkhRMvjGSEZ7xsd0wDFOmwh2uePbL63x2knz_0FPvBCNz_6YcagpyNCkf46D-Dig-GsW0Au92pbfvkmWA9izky2g7YuekGYF64rdyKg80U7h-ZpfUVuBuAqPuXUypdge-pib0oEKprIlMU" style="margin-left: 0px; margin-top: 0px;" width="546" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">圖說:北極星本身不亮,需要透過北斗七星或仙后座指引才能找到。</span></span></p><span style="font-size: large;"><br /><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000; font-size: x-large;">北極星是地球指定的</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">有沒有想過,為什麼北極正好有一顆北極星?其實這只是巧合,地球自轉軸剛好指向這顆名為「北極星」的星星。不過地球的自轉軸並不是固定指向這顆北極星,地球自轉軸會以2萬6千年的週期在天空畫一圓,就像陀螺轉動時它的自轉軸也會轉動,這個現象稱為歲差,現在地球自轉軸正好指向這顆原本叫勾陳一的恆星。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="border: none; display: inline-block; height: 563px; overflow: hidden; width: 564px;"><span style="font-size: large;"><img height="563" src="https://lh7-us.googleusercontent.com/bNgAShS6DyOktHi4JNyqkarOMWD_63c51IEz5h3M9tTsAfk5IAvxRXMvpNLO7_ZCt6h4yRoMz61nTRG0acIWrzOvO_AQkzwloke9q2BtkWI-0tRcHWWmqtVCjPdwaCueNyHAsUqzvU6QBNEMQqUve5Y" style="margin-left: 0px; margin-top: 0px;" width="564" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">圖說:地球的自轉軸不是固定不動的,而是以26000年的週期在天空畫一圓(上圖中的圓),圖中的數字是公元年。自轉軸指的方向就是北極,如果北極附近有顆星,那顆星就是北極星,現在地球自轉軸指向勾陳一,公元4000年時則是少尉增八,接下來的北極星是天鉤五(~7600年)、天津四(~10000年)和織女(~14000年),它們都是未來的北極星。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">不過勾陳一不會一直都是北極星。古埃及人在建造吉薩大金字塔時,地球自轉軸指向右樞,它是當時的北極星。中國商朝時,北極星變成帝,也就是小熊座β星。現在的北極星勾陳一會在公元2100年時最靠近北極,之後會漸漸遠離。接下來較亮的北極星有仙王座的少尉增八與天鉤五、天鵝座的天津四與天津二,到公元1萬4千年時織女成為北極星。</span></span></p><span style="font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">歲差會讓我們看見不同的星空嗎?答案是肯定的。大、小麥哲倫星雲相當靠近南極,現在想看美麗的大、小麥哲倫星雲要到南半球。不過因為歲差,1萬4千年前大、小麥哲倫星雲離南極較遠,讓北半球可以看見它,大麥哲倫星雲的仰角比現在的南十字再高一點,小麥哲倫則可以升到現在天蠍座尾巴的高度,當時台灣原住民可以清楚看見大、小麥哲倫星雲。羨慕以前的原住民嗎?再耐心等待1萬多年就可以看見喔。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; font-variant-position: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="font-size: large;">原文刊登在<a href="https://www.natgeomedia.com/science/article/content-16665.html?fbclid=IwAR3myN9j1EW9sSvbIUHxb7Sjbv3HWr6NXzl1RkGTvIQFapCiLGhIbn7KjC0">國家地理官網</a></span></span></p></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-7092890601989542112023-08-01T15:38:00.000+08:002023-08-01T15:38:14.408+08:002023年8月星空預報<p><span style="font-family: Arial, sans-serif; white-space-collapse: preserve;"><span style="font-size: large;">期待已久的英仙座流星雨即將來到,你準備好願望清單了嗎?八月還有哪些值得注意的天象呢?</span></span></p><p><span style="font-family: Arial, sans-serif; white-space-collapse: preserve;"><span style="font-size: large;"><br /></span></span></p><p><span style="font-family: Arial, sans-serif; white-space-collapse: preserve;"><span style="font-size: large;"></span></span></p><div class="separator" style="clear: both; text-align: center;"><span style="font-size: large;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTRaa8jUA-MCRsQPvwiNE8bW6GXOiSxCSaNWrCDrtbnExvjt-WEzr4cLchFYxAWNVxzl7ATxY7ov4dWl12YMPgG7eYpG9gbYGOFIIZHb4WV_k7X43Qf7EQ8BD9WmHaj4FJJeTlyRZ4hgp_EM7N0kwHIt_P9NXjQwWi4CLg5vacT7zq8NIkkQ4UjqKORPXl/s3124/DSC_0004%E8%97%8D%E6%9C%88.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img alt="藍月" border="0" data-original-height="2604" data-original-width="3124" height="503" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjTRaa8jUA-MCRsQPvwiNE8bW6GXOiSxCSaNWrCDrtbnExvjt-WEzr4cLchFYxAWNVxzl7ATxY7ov4dWl12YMPgG7eYpG9gbYGOFIIZHb4WV_k7X43Qf7EQ8BD9WmHaj4FJJeTlyRZ4hgp_EM7N0kwHIt_P9NXjQwWi4CLg5vacT7zq8NIkkQ4UjqKORPXl/w603-h503/DSC_0004%E8%97%8D%E6%9C%88.png" width="603" /></a></span></div><div style="text-align: center;"><span style="font-size: large;">藍月發生時,月亮其實不會變藍。</span></div><span style="font-size: large;"><br /></span><p></p><p><span style="font-family: Arial, sans-serif; white-space-collapse: preserve;"><span style="color: #990000; font-size: large;">8月10日(農曆廿四),水星東大距</span></span></p><p><span style="font-family: Arial, sans-serif; white-space-collapse: preserve;"><span style="font-size: large;">東大距是指水星位在太陽東側,而且水星離開太陽達到最大角度,這時水星東大距前後是最適合觀看水星的時間。日落後西方地平線上,可以看到平常較少見的水星。</span></span></p><span id="docs-internal-guid-ea4ea856-7fff-0424-cd56-ac02dbe0f5a1"><span style="font-size: large;"><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">8月13日(農曆廿七),英仙座流星雨</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; white-space-collapse: preserve;">極大期發生在台灣時間15:00到22:00,入夜後不受月光影響,非常適合觀賞,找個光害小的地方就可以看流星。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">根據國際流星組織的預測,極大期時每小時可以看見100顆流星,不過這個預測值是在條件最好的情況,一般的天氣狀況一小時大約可以看見幾十顆。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">8月18日(農曆初三),水星合月</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">傍晚西邊的地平線上,可以看見水星合月,水星才剛過東大距,非常適合觀看。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">8月19日(農曆初四),火星合月</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">日落後的西方,可以看見月亮靠近紅色火星。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">8月27日(農曆十二),土星衝</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">今年最佳觀看土星的時刻。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">8月31日(農曆十六),最大滿月,藍月</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">今年最大滿月,也稱為超級滿月,滿月比平常稍微大一點點,眼睛其實看不出來月亮比平常大。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">較特別的是,這次滿月是8月的第二次滿月,這樣的情況下這二次的滿月稱為「藍月」。藍月只是個名稱,實際上月亮不會變藍。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: Arial, sans-serif; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">祝 觀星愉快</span></p></span></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-68790753816984730162023-06-30T15:40:00.003+08:002023-06-30T15:50:53.079+08:002023年7月星空預報<p><span style="font-family: inherit; font-size: large;"> <span style="white-space-collapse: preserve;">7月星空很精彩、熱鬧,傍晚的西方可以看見金星與火星,7月下旬還有機會看見水星加入。這三顆行星都在獅子座的軒轅十四附近,可以看見軒轅十四合行星的現象。</span></span></p><span id="docs-internal-guid-c9e4e306-7fff-8c2b-e050-e19414c11d18"><span style="font-family: inherit; font-size: large;"><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">7月1日(農曆十四),火星合金星</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">希臘神話中,火星與金星分別代表戰神與美神,祂們常常背著自己的另一半偷情。7月1日傍晚西方地平線上,可以看見火星與金星相靠近,兩顆行星相距約3.6度。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="border: none; display: inline-block; height: 560px; overflow: hidden; width: 462px;"><img height="560" src="https://lh4.googleusercontent.com/g0jDsMhKWB7LkB2Io2-1lRtg4JbKBtW4UdMqF0kk80aEE9wP5bwphTesVOVvEHu1eOHmeg8x_LTHzpYHULLu0-XiHNyVo8KPCIrGhSdRRdrJe9K5h5Lgg2-uaSzFHVFRDcVhd81toVXJxp0aTrtx2YA" style="margin-left: 0px; margin-top: 0px;" width="462" /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">火星合金星。2022/3/12清晨,李昫岱攝於台南安平漁光島</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">7月10日(農曆廿三),軒轅十四合火星</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">軒轅十四位在黃道附近,沿著黃道運行的行星有時會靠近軒轅十四。軒轅十四與火星相距約0.7度。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">7月19、20、21日(農曆初二、初三、初四),水星合月、金星合月、火星合月</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">7月19、20、21日三天月亮會接連靠近水星、金星與火星,喜歡拍照的朋友可以連續做三天記錄,留下月亮與三行星的畫面。</span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><br /></span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhN9yqUNL-j9sZv7wi5sbNP9008XEpr7Ywk4CsdQnyfUZ61lGPDMDXZJVbPXiBFAwNYrY2U6EvDL8395KzLXRs2fOE6WUmA3-XeRqthqcrH-3YZ_8QyeeT5sbCd9-Ujg0qxj2iIj1ctn3aih7n4M4KAC9qRAgvpQr3TmpafOrMDAE6rK-TYssBzUCRPbSb1/s6000/%E7%B0%A1%E5%A0%B11.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4500" data-original-width="6000" height="517" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhN9yqUNL-j9sZv7wi5sbNP9008XEpr7Ywk4CsdQnyfUZ61lGPDMDXZJVbPXiBFAwNYrY2U6EvDL8395KzLXRs2fOE6WUmA3-XeRqthqcrH-3YZ_8QyeeT5sbCd9-Ujg0qxj2iIj1ctn3aih7n4M4KAC9qRAgvpQr3TmpafOrMDAE6rK-TYssBzUCRPbSb1/w689-h517/%E7%B0%A1%E5%A0%B11.jpg" width="689" /></a></div><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-family: inherit; text-align: left; white-space-collapse: preserve;">三行星合月相繼合月的過程。李昫岱攝於台南安平。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">7月26日(農曆初九),金星合水星</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">金星與水星是比地球靠近太陽的兩顆行星,傍晚西方地平線上可以看見它們,金星與水星相距約5度。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">7月28日(農曆十一),月掩心宿一</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">月掩心宿一,發生在7/28深夜(~23:20)到隔天凌晨(~00:20),歷時約一個小時,台灣可以看見月掩心宿一的整個過程。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;"><span style="color: #990000;">7月29日(農曆十二),軒轅十四合水星</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">火星才剛剛合軒轅十四,這次換水星了,軒轅十四與水星相距約0.7度。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space-collapse: preserve;">祝 觀星愉快!</span></p></span></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-10621115592104433662023-06-01T14:50:00.005+08:002023-06-01T14:50:49.669+08:002023年6月星空預<p><span style="font-family: inherit; white-space: pre-wrap;"><span style="font-size: large;">有沒有覺得時間過得很快,現在已經6月了,今年想看的天象都看到了嗎?</span></span></p><span id="docs-internal-guid-b770cae1-7fff-bbbd-94a7-505eafcfc4a8"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">6月3日(農曆十六),蜂巢星團合火星</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">蜂巢星團位在巨蟹座內,天氣好時肉眼可見,它位在黃道附近,所以有時會有沿著黃道運行的行星經過。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">6月3日火星與蜂巢星團中心相距約0.4度,相當靠近。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">6月4日(農曆十七),金星東大距</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">金星東大距是金星位在太陽東側,離太陽最大的角度。金星在此之後會漸漸靠近太陽,8月中旬後,想要看見金星就必須早起才能它的風采。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">6月22日(農曆初五),金星合月,火星合月</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">傍晚西方地平線上,同一天出現金星合月與火星合月,兩顆行星同一天合月比較少見。金星、火星與月亮三個天體相隔不遠,大約形成一個正三角形。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmuG2V8LzbylO2e-HITTuDhugqQx9WpqpoEy6CtjRSypTyKBLUXht6p91R-NbuCF_AYNhOf-byi82zLxcD1wXJTc2vnFcQhHJTrCqlaLG-CT0UquKUPaThRIYEuC4O8Ij2SyPCHkp20HIuHIZKHtse-NlQ2uIhVt4BwmF9aaNLbrhaZ5EKkDTw74gwCA/s5977/%E9%87%91%E6%98%9F%E5%90%88%E6%9C%88%E8%88%87%E7%81%AB%E6%98%9F%E5%90%88%E6%9C%882.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img alt="2022/2/27的金星合月與火星合月。李昫岱攝於台南安平" border="0" data-original-height="5977" data-original-width="4912" height="600" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjmuG2V8LzbylO2e-HITTuDhugqQx9WpqpoEy6CtjRSypTyKBLUXht6p91R-NbuCF_AYNhOf-byi82zLxcD1wXJTc2vnFcQhHJTrCqlaLG-CT0UquKUPaThRIYEuC4O8Ij2SyPCHkp20HIuHIZKHtse-NlQ2uIhVt4BwmF9aaNLbrhaZ5EKkDTw74gwCA/w493-h600/%E9%87%91%E6%98%9F%E5%90%88%E6%9C%88%E8%88%87%E7%81%AB%E6%98%9F%E5%90%88%E6%9C%882.jpg" width="493" /></span></a></div><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">2022/2/27的金星合月與火星合月。李昫岱攝於台南安平</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-48464198041676331782023-05-29T13:30:00.003+08:002023-05-30T12:36:58.217+08:00 尼爾.德葛拉司.泰森《宇宙教我們的人生課》<p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-size: large;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit;">尼爾.德葛拉司.泰森</span></span><span style="white-space: pre-wrap;">(Neil deGrasse Tyson)</span><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit;">是一位知名的天文學博士,也是海頓天文館館長。最近三采文化出版泰森的一本書</span></span><span style="white-space: pre-wrap;">《宇宙教我們的人生課》,這本書跟他之前寫的</span><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit;">天文科普書不一樣</span></span><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit;">,這本書希望用天文學家或科學家的觀點來看我們的人生和世界。<span style="font-family: inherit;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEjXIBTknXmOmhpbJWtOxF7q3QYaILynVAxLP7C0wARSGsnU9Vj7avGmFhYv5fbr6bKE5jR91vO4P6mrrir2c-MTG6CX0b_2aQO3EUEdW-8zZ0_g7mqMY_j5Gbf8gVadRHZhBnW6S3Z44BcNbf9r-cofdw8H44sfumbk7w3JpDgpeQzYPkXyKEqvog2_pg" style="margin-left: 1em; margin-right: 1em;"><img alt="" data-original-height="2290" data-original-width="1735" height="759" src="https://blogger.googleusercontent.com/img/a/AVvXsEjXIBTknXmOmhpbJWtOxF7q3QYaILynVAxLP7C0wARSGsnU9Vj7avGmFhYv5fbr6bKE5jR91vO4P6mrrir2c-MTG6CX0b_2aQO3EUEdW-8zZ0_g7mqMY_j5Gbf8gVadRHZhBnW6S3Z44BcNbf9r-cofdw8H44sfumbk7w3JpDgpeQzYPkXyKEqvog2_pg=w576-h759" width="576" /></a></span></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="white-space: pre-wrap;"><span style="font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-size: large;"><span style="white-space: pre-wrap;">泰森</span><span style="white-space: pre-wrap;">一直以來</span><span style="white-space: pre-wrap;">都以</span><span style="white-space: pre-wrap;">卡爾.薩根(Carl Sagan)</span><span style="white-space: pre-wrap;">的傳人自居</span><span style="font-family: inherit; white-space: pre-wrap;">,薩根是一位全球著名的天文學家,他曾經建議距離地球60億公里外的航海家1號太空船拍攝地球照片,照片中地球非常小,只有一個畫素,如果沒有指出地球所在的位置,大部分的人都不知道地球在哪裡,這個蒼藍小點是地球上世世代代生命生存的所在。泰森希望透過這樣的視角來看我們生活的世界。</span></span></p><p></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-size: large;"><br /></span></p><span id="docs-internal-guid-27cfbd21-7fff-ce85-bf3d-a20a72983609"><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEhYsgyxowfvEZ4Y2nTG8D5EiiTrL_FGVQsdUvoN0MyNL9hmy6YhILRkedh59zmuIqfyHyqxnmk808tmaHzVbpre40orwa15AtnIl1Jzg_gbz_KKiIgB8NmPISzR0ECGcz5J3TP44wf6VGEfi4hTdk-hHyywtfB_5eR58EA4kdbhBOFxDQ1NwxsSJeIVcQ" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img alt="" data-original-height="1024" data-original-width="1035" height="584" src="https://blogger.googleusercontent.com/img/a/AVvXsEhYsgyxowfvEZ4Y2nTG8D5EiiTrL_FGVQsdUvoN0MyNL9hmy6YhILRkedh59zmuIqfyHyqxnmk808tmaHzVbpre40orwa15AtnIl1Jzg_gbz_KKiIgB8NmPISzR0ECGcz5J3TP44wf6VGEfi4hTdk-hHyywtfB_5eR58EA4kdbhBOFxDQ1NwxsSJeIVcQ=w591-h584" width="591" /></span></a></div><p></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">你有看見航海家1號拍攝的地球嗎?地球就在中間偏右的地方,這個蒼藍小點就是我們的家。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-size: large;"><br /></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">曾經有人問我,天文學家研究、關心的尺度非常大,心胸一定也很大,對吧?</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">其實天文學家也是人,跟每個人一樣有七情六慾,心胸不一定比較開闊。不過有時候天文學家會用一些不同的觀點看世界,這點確實是值得參考的。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">泰森寫作的方式相當平易近人,善於舉例,沒有教條式,讓讀的人很容易接受。這本書中提到膚色與種族的歧視,泰森是一位非裔人士,對這個議題一定感受很多。我在美國工作時,大部分的美國人都相當友善,不過也遇到過歧視的狀況,一車的白人從我旁邊呼嘯而過,大聲吼叫難聽的話。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">最近一些高中生和大學生的歧視言論在輿論上鬧得沸沸揚揚,種族、膚色、宗教、性別、年齡各種歧視是造成對立、仇恨甚至引發戰爭的原因。泰森在書中提到,如果外星人到地球,他們眼中的地球人看起來沒有什麼不同,就像我們看一群金魚一樣,為什麼要對特定的族群歧視呢?這個議題現在讀起來特別有感觸,建議大家讀讀這本《宇宙教我們的人生課》,從中感受天文學家看世界的方式。</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-2115979688274441752023-05-02T21:01:00.001+08:002023-05-02T21:07:35.494+08:00 2023年5月星空預報<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">5月的星空有半影月食,清晨可以見木星合月與水星合月,傍晚有金星合月,不過正逢梅雨季,能不能看見就只能看天吃飯了。</span></span></p><span id="docs-internal-guid-8d3966cb-7fff-6bf3-e78b-cec8cfcf64b4"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgq2pf_umNjZyaMoWG9-t_WUdcuHejkSov2hlo-bhkBfWGe3QP9X5CAzeVS5hbd3EV8OriWIlXLo5StFSR6CKDXlXSkN1U80WTTWURuy6ZPCbW-Zw43NlYp3uACbFKx3HWuWflC_b-trRGBuxti70cXds3u68aQ6-Rb9gyC2wMLR__Yamj2XkT-MOJiYg/s7360/DSC_5436.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4912" data-original-width="7360" height="429" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgq2pf_umNjZyaMoWG9-t_WUdcuHejkSov2hlo-bhkBfWGe3QP9X5CAzeVS5hbd3EV8OriWIlXLo5StFSR6CKDXlXSkN1U80WTTWURuy6ZPCbW-Zw43NlYp3uACbFKx3HWuWflC_b-trRGBuxti70cXds3u68aQ6-Rb9gyC2wMLR__Yamj2XkT-MOJiYg/w641-h429/DSC_5436.JPG" width="641" /></a></div><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: inherit; font-size: x-large; white-space: pre-wrap;">月亮正要掩過金星。2023/3/24月掩金星前</span><span style="font-size: x-large; white-space: pre-wrap;">李昫岱攝於</span><span style="font-family: inherit; font-size: x-large; white-space: pre-wrap;">台南安平</span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">5月6日(農曆十七),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/Mjc5dTBmZmF0cGpjc2ZydGVjb3A3bzV0N2cgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw">半影月食</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">半影月食發生的時間從5月5日深夜到5月6日凌晨,半影月食發生時月亮沒有進入地球本影,所以月食的現象並不明顯,月食的過程中,月亮只有一部分稍微變暗,也不會變紅。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEive8GBLxQ4RVTJHbE8u96IEKpp4Vkg_YbWn70OfETAoYltjnKaPxiQGV0aCUAAX-L3En_4zBmMsMgHwxm6-7lj-c2vYYDJiK7U2OS1ADNS-UWd7y4nWQZoX9wXt3L8SWk3qSWFLWJ_FHmR0QWXmhGz9jmYERIE0x0kI-eATZM-So771NEniRUWPlsYKA/s5383/%E5%8D%8A%E5%BD%B1%E6%9C%88%E9%A3%9F.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4850" data-original-width="5383" height="490" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEive8GBLxQ4RVTJHbE8u96IEKpp4Vkg_YbWn70OfETAoYltjnKaPxiQGV0aCUAAX-L3En_4zBmMsMgHwxm6-7lj-c2vYYDJiK7U2OS1ADNS-UWd7y4nWQZoX9wXt3L8SWk3qSWFLWJ_FHmR0QWXmhGz9jmYERIE0x0kI-eATZM-So771NEniRUWPlsYKA/w545-h490/%E5%8D%8A%E5%BD%B1%E6%9C%88%E9%A3%9F.jpg" width="545" /></a></div><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-size: large;">5月6日發生的半影月食。影像來源:NASA</span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">5月17日(農曆廿八),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MXBmZGk0NjM1aXFscmRndmVrMHAzNW1wdGIgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw">木星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">日出前的東方,木星與月亮相距約8度。月亮位在木星上方,木星下方還有水星,三個天體接近等距排成一弧線。早起的朋友可以往東方看看這景象。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">5月18日(農曆廿九),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MG9sazMxb2R1MGs5cG8yODdyMGkwOHNjbWUgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw">水星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">日出前的東方,可以看見水星與細細的殘月靠得很近,兩個天體相距約2.5度。這一天是農曆廿九,是農曆三月的最後一天,要找到殘月除了天氣要好,也需要點運氣。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">木星位在水星上方,兩者相距約6度,喜歡拍照的朋友可以把木星、殘月與水星同框拍起來。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">5月23日(農曆初五),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MjVkM2Y2OTIzODlxczlpMTR1cTlxaTQwa2wgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw">金星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">金星與月亮相距約2度,兩個天體剛好位在雙子座腰部上方,喜歡攝影的朋友可以等天暗一點,讓金星合月與雙子座一起入鏡。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">5月29日(農曆十一),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NmRzcmZrb2syYmw4dHFsdTkzZWthdGJhajkgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw">水星西大距</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">水星西大距前後一段時間,日出前東方地平線上,可以看到平常較少見的水星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-38050881125971989092023-04-02T14:11:00.001+08:002023-04-02T14:16:55.649+08:00 2023年4月星空預報<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">大家有看見3月的月掩金星嗎?如果錯過,可以看看四月的月掩太陽(誤),日偏食才對。</span></span></p><span id="docs-internal-guid-5fccc7d1-7fff-735c-c252-f0e6c8ceaf1c"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">4月12日(農曆廿二),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MjVnZTF0NzBwbm1uN241ZXJ2b3JvZHJnNXIgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw">水星東大距</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">水星東大距的前後一段時間,可以看到平常較少見的水星,水星會出現在日落後西方地平線上。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">4月20日(農曆初一),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NXVqOTg4ZWthOW4ydXRtanIxbXVrM2hvcmUgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw">複合日食</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">台灣午後可見日偏食,食分約0.1。食甚發生的時間大約是13:08左右,各地發生的時間有幾分鐘的差距,整個日食的時間(從初虧到復圓)大約80多分鐘。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: inherit; font-size: large;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">從EclipseWise的</span><a href="https://eclipsewise.com/solar/SEgmapx/2001-2100/SE2023Apr20Hgmapx.html" style="text-decoration-line: none;"><span style="color: #1155cc; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; text-decoration-line: underline; text-decoration-skip-ink: none; vertical-align: baseline; white-space: pre-wrap;">google地圖</span></a><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">上可以找到各地初虧(C1)、食甚和復圓(C4)的時間,記得地圖上的Time Zone要改成UT1+8,這才是台灣時間。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAiV6g2nsL24Tgy7zD1LlQBpCZBF3UjNBSyNZtkNvOgmn_XwWQxiAl0v3GSoIzDbYmc0bfzwP4xJatthBhgalnBCeMhG4vW5rq7fqxFJsnoKpkWn4Bq0No6pJ2kcR-fvbe_2PFyXc2LxEwrnEN51lmZrwOzeqgEKN79snuWhz_D84UeUHV9REr3EXRaw/s2328/%E6%88%AA%E5%9C%96%202023-04-01%20%E4%B8%8B%E5%8D%882.32.42.png" style="margin-left: 1em; margin-right: 1em;"><span style="font-family: inherit; font-size: large;"><img border="0" data-original-height="1200" data-original-width="2328" height="303" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiAiV6g2nsL24Tgy7zD1LlQBpCZBF3UjNBSyNZtkNvOgmn_XwWQxiAl0v3GSoIzDbYmc0bfzwP4xJatthBhgalnBCeMhG4vW5rq7fqxFJsnoKpkWn4Bq0No6pJ2kcR-fvbe_2PFyXc2LxEwrnEN51lmZrwOzeqgEKN79snuWhz_D84UeUHV9REr3EXRaw/w588-h303/%E6%88%AA%E5%9C%96%202023-04-01%20%E4%B8%8B%E5%8D%882.32.42.png" width="588" /></span></a></div><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: inherit; font-size: large;"><a href="http://eclipsewise.com" style="text-decoration-line: none;"><span style="color: #1155cc; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; text-decoration-line: underline; text-decoration-skip-ink: none; vertical-align: baseline; white-space: pre-wrap;">EclipseWise.com</span></a><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"> 上的日食地圖相當方便,可以顯示各地初虧、食甚和復圓的時間。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: inherit; font-size: large;"><span style="color: red; font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">看太陽絕對要用太陽濾鏡</span><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">,不然會造成眼睛永久性傷害。如果要用相機拍日食,也需要用太陽濾鏡,否則強烈的太陽光會造成相機鏡頭和相機感光元件損毀。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">台灣下一次可以看見日食的時間是2030年6月1日。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">4月21日(農曆初二),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MTJwdmgxdTkzYnZpYjc2ZHR2ODkxMzI1M2wgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw">水星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">水星剛過東大距不久,還算適合觀賞。日落後的傍晚,水星與眉月將一起出現在西方,水星與眉月相距約1.8度。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">4月23日(農曆初四),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MjJscHNhMWhxZnNvNWFlMHRkYTYwYWFldnEgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw">金星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">金星合月一直是我很喜歡拍的主題,金星加上細細的眉月,怎麼拍都好看。傍晚西方地平線上,金星與眉月相距約2度。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-alternates: normal; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快!</span></span></p></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-71772194615814571692023-02-28T13:05:00.002+08:002023-02-28T13:14:10.064+08:00 2023年3月星空預報<p><span style="font-family: inherit; font-size: large; white-space: pre-wrap;">3月的星空非常精彩,各種天象輪番上演,木星先後合金星與水星,更難得的是月掩金星,非常罕見,千萬不要錯過!</span></p><p><span style="font-family: inherit; font-size: large; white-space: pre-wrap;"><br /></span></p><p><span style="font-size: large;"><span style="color: #990000; font-family: inherit; white-space: pre-wrap;">3月2日(農曆十一),</span><a href="https://calendar.google.com/calendar/u/0/r/eventedit/NGwyb2lnZnFnMmVkMWhxNjdhZ28wdjkxZXUgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc" style="font-family: inherit; white-space: pre-wrap;">木星合金星</a></span></p><span id="docs-internal-guid-0c172674-7fff-bc58-182c-0676ce7af7cb"><span style="font-family: inherit; font-size: large;"><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">這次木星合金星可以在日落後的西方看見,木星與金星相距只有0.5度,相當於月球的視直徑,兩顆行星在天空中這麼靠近相當難得。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">金星與木星都非常亮,夜空中只比月亮暗,它們分別是夜空中第二與第三亮的天體,兩顆行星靠得這麼近特別閃亮。</span></p><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxKiwCyQlc4tO6eDyy3CTNkGzmJN9p9SUIjXmS5pOAEDFgKpzgMFD9pb8IeMdt4-M7NFADPyiTdCk4Qqytwho5sPqRaKCK1a--7v3OjDtqlHSIvQ1Gy2aS301XklmPWOvIfFiselD4d96fmcIJ5dM1H8Y5A2X34dvFnOQJlBZG1ix-AyYR6k8irBCe7g/s7360/DSC_0755%E6%9C%A8%E6%98%9F%E5%90%88%E9%87%91%E6%98%9F+%E5%9C%9F%E6%98%9F.JPG" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4912" data-original-width="7360" height="413" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgxKiwCyQlc4tO6eDyy3CTNkGzmJN9p9SUIjXmS5pOAEDFgKpzgMFD9pb8IeMdt4-M7NFADPyiTdCk4Qqytwho5sPqRaKCK1a--7v3OjDtqlHSIvQ1Gy2aS301XklmPWOvIfFiselD4d96fmcIJ5dM1H8Y5A2X34dvFnOQJlBZG1ix-AyYR6k8irBCe7g/w616-h413/DSC_0755%E6%9C%A8%E6%98%9F%E5%90%88%E9%87%91%E6%98%9F+%E5%9C%9F%E6%98%9F.JPG" width="616" /></a></div><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-family: inherit; white-space: pre-wrap;">木星合金星,兩顆行星相距約1.4度 2019/11/24李昫岱攝於台南永康</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000;">3月23日(農曆初二),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MTA2OG5sbDNrbTM5YmdkdmltMGozcThtNWggbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">木星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">錯過2月23日的木星合月嗎?當時眉月、木星與金星排成一直線,吸引眾人的目光。</span></p><br /><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXOHxXcFBITdB5YVWNT5WkmIfapuiLIxIWBFmhLFKPYxSmTZSUwUh6mUVRiHUNykQ94g_hHfAZwH1RjEuKRsHKsK4XEj1WiIMTWwN3JJNgpIPBbmtCFoMRcm3--SsDA2SNsKnH0Lo327k4g_bGf6bx8ifieD_QKWS4s4DEgyH51S_OqLmwvT8rQeLapA/s6000/%E6%9C%A8%E6%98%9F%E5%90%88%E6%9C%88%EF%BC%8B%E9%87%91%E6%98%9F%EF%BC%BF%E6%A8%99%E7%A4%BA.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="6000" data-original-width="4912" height="667" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhXOHxXcFBITdB5YVWNT5WkmIfapuiLIxIWBFmhLFKPYxSmTZSUwUh6mUVRiHUNykQ94g_hHfAZwH1RjEuKRsHKsK4XEj1WiIMTWwN3JJNgpIPBbmtCFoMRcm3--SsDA2SNsKnH0Lo327k4g_bGf6bx8ifieD_QKWS4s4DEgyH51S_OqLmwvT8rQeLapA/w546-h667/%E6%9C%A8%E6%98%9F%E5%90%88%E6%9C%88%EF%BC%8B%E9%87%91%E6%98%9F%EF%BC%BF%E6%A8%99%E7%A4%BA.jpg" width="546" /></a></div><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">木星合月與金星。2023/2/23,李昫岱攝於台南安平</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">沒看見這三個天體排排站的人,3月23日還有機會。這次眉月位在金星與木星之間,它們會一起出現在日落後的西方。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000;">3月24日(農曆初三),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NWU2OGczZDB0ZDNjcWVxMDZxaHRxNm1tOWogbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">月掩金星</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">傍晚西方地平線上,發生罕見月亮掩過金星的現象。當天日落時間大約是18:10,掩入的時間大約是19:50前後,台灣各地會差幾分鐘。月落時間是20:47,可惜的是月落後金星才復出,不能看見月掩金星整個階段。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">當天是農曆初三的眉月,月亮的亮緣在下方,金星的仰角比在眉月高。眉月漸漸靠近金星,大約在地平線上方12度的位置掩過金星。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 461px; overflow: hidden; width: 451px;"><img height="461" src="https://lh6.googleusercontent.com/fgit15kavGMINYGrExYvq0KN-al2dPgGXLNMw-b14q44gpWTi725MpDjwsTTbF_1u5Zrait_3CPCVTKM2G0GeAQ-aCQd-uiLggatKURpRi2hY4wF-gUcjgLcLvGrwD6gcqbUkz42Q_86mqMmzR_w9gc" style="margin-left: 0px; margin-top: 0px;" width="451" /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">3月24日,月掩金星。Stellarium軟體模擬</span></p><br /><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000;">3月28日(農曆初七),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MWNmazFzZWI4dWo0aHFmOXZudWZwbGhvNmsgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">木星合水星</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">傍晚西方地平線上,木星與水星相距約1.3度。水星4月12日才會達到東大距,所以水星的位置相當低,天氣好才有機會看見。</span></p><br /><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">祝 觀星愉快!</span></p></span></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-39028417862705126252023-02-03T20:20:00.003+08:002023-02-03T20:21:48.568+08:002023年2月星空預報<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">今年2月的天像較少,不過可以為未來做些準備。</span></span></p><p><span style="font-family: inherit; white-space: pre-wrap;"><span style="color: #990000; font-size: x-large;">2月6日(農曆十六),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MGc3MnVmbzEwYmtkOHI5YWthdGZ1bDIwMnIgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">最小滿月</a></span></span></p><span id="docs-internal-guid-0e1ce26d-7fff-abb0-fd76-086aaeed66fc"><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">當滿月發生在遠地點附近,這時月亮看起來最小,稱為最小滿月,今年的最小滿月發生在2月6日凌晨2:29。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">用肉眼看最小滿月,其實不會感覺它比一般滿月小,通常需要透過攝影才能比較出大小。最小滿月時拍張照片,半年後(8月31日)出現最大滿月時再拍一張,拿這兩張滿月做比較,可以清楚看見大小的差異。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">先拍一張最小滿月的照片,為半年後的最大滿月做準備。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 451px; overflow: hidden; width: 602px;"><span style="font-family: inherit; font-size: large;"><img height="451" src="https://lh6.googleusercontent.com/uLo_R_jyqs6xez_nzAQD-16Ry4sZlHIv1hmHgPOveh5CCJO4gn848Z11ks3-FdhoeUrCVl01XRYSbM9Y0GmFHOWdh0ap8FUEC_z7jE_JV2G-e9YsUjNZQPHVkt5jhKORu9ZFyT85pm1DeOv07K55U_M" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">Stellarium軟體模擬今年最小滿月和最大滿月的比較</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">2月22日(農曆初三),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MTAzb3V2b3QzOHBqYWZzYmNlaXNsOTk3aTYgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">金星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">傍晚西方地平線上,金星與月亮相距約1.8度。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">幾乎每個月都可以看見金星合月,不過這次的金星合月,可以當作下個月的月掩金星(3/24)的預演,預想一下金星合月要怎麼拍,這個月先練習一次。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快!</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-26162710314478516952023-01-02T21:04:00.002+08:002023-01-04T14:28:32.282+08:00 2023年1月星空預報<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">新的一年總讓人期待,1月的星空除了固定的象限座流星雨,還有1/23土星、金星與新月三個天體同一天合,另外還有C/2022 E3 (ZTF)彗星,這顆彗星在1月下旬可能達到肉眼可見的亮度,相當令人期待!</span></span></p><span id="docs-internal-guid-dec9f372-7fff-a3fd-8cdd-8cd14ced843a"><br /><p dir="ltr" style="font-family: inherit; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-size: x-large;">1月4日(農曆十三),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MDU5MGE0MWl2NTU4aWM1M3B0NWVsNGZ1cjAgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">象限儀座流星雨</a></span></span></p><p dir="ltr" style="font-family: inherit; font-size: x-large; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">極大期發生在台灣時間白天11:40,入夜後受月光影響會降低看到流星的數量。建議1月4日凌晨觀看。</span></p><br /><p dir="ltr" style="font-family: inherit; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-size: x-large;">1月12日(農曆廿一),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/M3ZtMGVhMTc2Njd2NG84aWhwMHIwdms3djkgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">C/2022 E3 (ZTF)彗星近日點</a></span></span></p><p dir="ltr" style="font-family: inherit; font-size: x-large; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">C/2022 E3 (ZTF)彗星是一顆長週期彗星,這顆彗星在1月12日最靠近太陽,2月1日時距離地球最近,這時彗星亮度達到最亮,預估彗星亮度可達5-6等,肉眼有機會看見。</span></p><br /><p dir="ltr" style="font-family: inherit; font-size: x-large; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">1月下旬比較適合觀測,這時彗星位在北斗七星附近,下半夜仰角較高,不受月光影響,是觀看彗星的好時機。</span></p><div style="font-size: x-large;"><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-QPi29d4Lf5VfgoU-0c-sj7gFbPgPXtzwJBfsaFDcpmcYUblkyhBrbe8KigT_FJMDYp3QlHkTLddSwTIk6kOOp5LO_Z4Od3V1cbwNsswv110WBdwHi4YccEsIIP5V6rxSsIz8rKdW4pnuqEuC32R_8FUoDxgDnTEA4L0VPQ9QCrX2zyRRfvlP8JBeew/s3038/%E6%B5%B7%E7%88%BE-%E5%8D%9A%E6%99%AE%E5%BD%97%E6%98%9F2.jpg" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="3038" data-original-width="2986" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-QPi29d4Lf5VfgoU-0c-sj7gFbPgPXtzwJBfsaFDcpmcYUblkyhBrbe8KigT_FJMDYp3QlHkTLddSwTIk6kOOp5LO_Z4Od3V1cbwNsswv110WBdwHi4YccEsIIP5V6rxSsIz8rKdW4pnuqEuC32R_8FUoDxgDnTEA4L0VPQ9QCrX2zyRRfvlP8JBeew/w630-h640/%E6%B5%B7%E7%88%BE-%E5%8D%9A%E6%99%AE%E5%BD%97%E6%98%9F2.jpg" width="630" /></a></div><br /><div style="font-size: x-large; text-align: center;">海爾-博普彗星,1997/4 李昫岱攝於合歡山</div><br /><p dir="ltr" style="font-family: inherit; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-size: x-large;">1月20日(農曆廿九),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MTFmMHRwNWRydDBnN2t2YXBtcjVzMnA1dDAgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">水星合月</a></span></span></p><p dir="ltr" style="font-family: inherit; font-size: x-large; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">日出前水星與月亮一起出現在東方地平線上,水星位在殘月北側約9度處,水星接近西大距,比較容易看見。</span></p><br /><p dir="ltr" style="font-family: inherit; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-size: x-large;">1月23日(農曆初二),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NW9idXNlY2RqaGYzOXBhNzZjN3FtM3B2YWcgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">土星合金星,土星合月,金星合月</a></span></span></p><p dir="ltr" style="font-family: inherit; font-size: x-large; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">日落後的西方,可以看見土星合金星,土星合月,金星合月,三個天體同一天合,相當罕見。金星與土星相距約0.7度,新月在它們的南方。</span></p><br /><p dir="ltr" style="font-family: inherit; font-size: x-large; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 618px; overflow: hidden; width: 411px;"><img height="618" src="https://lh4.googleusercontent.com/CKYlTlgkxs9v4SFTvv_hpy4lsa42PR3DZtIxTASYzkbQk_ncFhWzvVPaqwWwQ0Hzqx8R0UTZQNmcGIhZp2ExaRVhB1bcXWhQRRMtGv86jSxBYOKtQJdTNqMWB-fUBwbonviFOAG0FoGVMMeNW93F2GvWDzl3ja3qjKTWP7GcfxDfkkr9cG-FcTBlYiZhpg" style="margin-left: 0px; margin-top: 0px;" width="411" /></span></span></p><p dir="ltr" style="font-family: inherit; font-size: x-large; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">Stellarium軟體模擬1月23日傍晚的土星合金星,土星合月,金星合月</span></p><br /><p dir="ltr" style="font-family: inherit; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-size: x-large;">1月30日(農曆初九),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MGcxZ2o4N25hdXNiaHR0ZjJhb2F0dGU1bWEgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">水星西大距</a></span></span></p><p dir="ltr" style="font-family: inherit; font-size: x-large; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">日出前東方地平線上,可以看到平常較少見的水星。</span></p><br /><p dir="ltr" style="font-family: inherit; font-size: x-large; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">祝 <a href="https://drive.google.com/drive/folders/1YDAPSl-tf9NBsmELnFcYU-Vqn4W5wbHc?usp=sharing"><span style="color: black;">觀星愉快</span></a>!</span></p></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-49607713671064641232022-12-18T13:33:00.002+08:002022-12-18T13:33:46.356+08:002023年不能錯過的8個天象<p><span style="font-family: inherit; font-size: large;"> <span style="white-space: pre-wrap;">2023年的天象相當精彩,有相當罕見的月掩金星,每年的三大流星雨中,今年的英仙座流星雨和雙子座流星雨都不受月光影響,非常直得期待!</span></span></p><span id="docs-internal-guid-be9c677c-7fff-0ccb-30f7-108a49921c2b"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">1月23日(農曆初二),土星合金星,土星合月,金星合月⭐⭐⭐⭐</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">日落後的西方,可以看見土星合金星,土星合月,金星合月,三個天體同一天合,相當罕見。金星與土星相距約0.7度,新月在它們的南方。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 618px; overflow: hidden; width: 411px;"><span style="font-family: inherit; font-size: large;"><img height="618" src="https://lh6.googleusercontent.com/UBeCT3v3YyGMNbRiqzOeWLqnkk4SXzT7v5LJyuQci3gAUEkQV3h_F39JB_Q8MiD8uRsmoWfB7nq0T38zTxpwscV-xs5oUXTlU4SE2r8sXifjlTp3G5uoimonT8kbZbMlO-yYb7Bbv-xenGERF4IzlHMYXNQ43kLqgfgWUn4zoorwrKMFxdEd608Jcg2RcA" style="margin-left: 0px; margin-top: 0px;" width="411" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">Stellarium軟體模擬1月23日的土星合金星,土星合月,金星合月</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">3月2日(農曆十一),木星合金星⭐⭐⭐⭐</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">夜空中,月亮是最亮的天體,金星與木星排名第二與第三。3月2日,木星與金星相距只有0.5度,日落後的西方可以看見它們聚在一起,兩顆明亮的行星靠得相當近,非常耀眼。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 647px; overflow: hidden; width: 432px;"><span style="font-family: inherit; font-size: large;"><img height="647" src="https://lh4.googleusercontent.com/NOq4LJfVjjunlFPxAuk3pH6AYAFcY0qUj4ShMl0nhf1r4fOllBUi-TUAHIDad6pRHiXzUwY93Ty54AzqBADZSxy16wHHQEdT2GMVdi8OLGnYT2h-uDmAyWoyc9lIaGVc_naotzRGc2WRrWukl2LfIBRnna38GpFmtOWOe0wS639eHJ402dmfKKRjBmK4aQ" style="margin-left: 0px; margin-top: 0px;" width="432" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">木星合金星,兩顆行星相距約1.4度 2019/11/24李昫岱攝於台南永康</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">3月24日(農曆初三),月掩金星⭐⭐⭐⭐⭐</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">傍晚西方地平線上,發生罕見月亮掩過金星的現象。當天日落時間大約是18:10,掩入的時間大約是19:50前後,台灣各地會差幾分鐘。當天月落時間大約是20:47,可惜的是月落後金星才復出,不能看見月掩金星整個階段。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">當天是農曆初三的眉月,月亮的亮緣在下方,金星的仰角比在眉月高。眉月漸漸往上靠近金星,大約在地平線上方12度的位置掩過金星。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 461px; overflow: hidden; width: 451px;"><span style="font-family: inherit; font-size: large;"><img height="461" src="https://lh5.googleusercontent.com/cCL0QN0Jg69j_R-rQ9PHnF2bOVm9xZDDOIX9broI_TbOhYGclCa_r78K4E-0S36elWE78CrcRcogIWMPUDq75Tvc8Nf_w1t3u1PM55nMSNeIbl38gKke2FU-33FI7dw4FUGUAMDDb4SzwnTbRZX4AY5BkuhZ41iskECzdhjkD9sfUoz-bW9a77Ez_giLGg" style="margin-left: 0px; margin-top: 0px;" width="451" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">3月24日,月掩金星。Stellarium軟體模擬</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">4月20日(農曆初一),複合日食⭐⭐⭐</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">複合日食是一種罕見的日食,同一場日食出現日環食與日全食。4月20日發生的日食,開始與結束是日環食,中間是日全食。這次的複合日食,台灣可以在午後看見偏食,食分(食的程度)只有約0.1,南部會比北部的食分稍大一點。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 427px; overflow: hidden; width: 427px;"><span style="font-family: inherit; font-size: large;"><img height="427" src="https://lh4.googleusercontent.com/mTKNibQRq8_o6D1Br5eLYd651to4m1OZUR6dqdSlRj0Nt_MCQmYcsL5kn85sSXLtSZg1mQlgmu-7N-ELGXPoBKNaXzOfGw9RKFHQ9PAhHFx2CiHJzhAf4qHeKfdEsdmR3Zg8HXBBVyj9rOAcyvUEPbqkboIaq3RKS0rPo1myEo91mGV8cynwraTEA5R1rQ" style="margin-left: 0px; margin-top: 0px;" width="427" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">4月20日發生複合日食,台灣只能看見偏食。影像來源:NASA</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 358px; overflow: hidden; width: 337px;"><span style="font-family: inherit; font-size: large;"><img height="358" src="https://lh4.googleusercontent.com/QYNwKyO1OcoSa8OXV0xrac7IXLPfQxro2hGVKE8S2fRozXFFSzDwN5byQQVDqQxSPVt1ZWqTSnSB4uREJo5UzHXB0mzvfMAos9YfEzfFpqzgQysFhboiqakN_Sge6FH_5NOCnFrUUQ_sa178_IJwdT47PjsqahK2V4jzIa-ird-V5CSLKSVPYDfr2-j0Cg" style="margin-left: 0px; margin-top: 0px;" width="337" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">台灣午後可見日偏食,食分約0.1。Stellarium軟體模擬。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">6月22日(農曆初五),金星合月,火星合月⭐⭐⭐</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">行星都沿著黃道運行,有時兩顆行星會靠近,7月1日是火星合金星,兩行星相距約3.6度。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">火星合金星之前,6月22日傍晚西方地平線上,兩顆行星同一天合月,金星與火星分別離月亮約4.6度與3.3度,這時兩顆行星相距約4.4度。雙行星合月算是比較罕見的天象。</span></span></p><span style="font-family: inherit; font-size: large;"><br /><br /><br /><br /><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 484px; overflow: hidden; width: 476px;"><span style="font-family: inherit; font-size: large;"><img height="484" src="https://lh5.googleusercontent.com/SLICU_Q6JSuRBLswA0pY7o23-XkekXOIbdB5zXmso38jdeXymEikL76dzAtHig24fPyPH-r7lvEzazjBUm1FnqCZo-s2B-F94jcAdS8mwCFPtPcebaocdwj-R-5clBRjWIxbNQPmRbTyV-zP7qf9sTz1CgA5anLH3iF3Qw2a3vzMVWCJ6SENiJeVmMWe5w" style="margin-left: 0px; margin-top: 0px;" width="476" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">土星合月與木星合月,兩顆行星同一天合月比較罕見。2020/12/17李昫岱攝於台南永康</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">8月13日(農曆廿七),英仙座流星雨⭐⭐⭐⭐</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">今年英仙座極大期發生在台灣時間8月13日的15:00到22:00,入夜後不受月光影響,非常適合觀賞。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">觀賞流星雨,可以找光害小的地方,就有機會看見流星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">10月29日(農曆十五),月偏食⭐⭐⭐</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">這次的月偏食台灣可見月沒帶食,半影食始(2:01)、初虧(3:35)、食甚(4:15)、生光(4:52)都可以看見,只有最後一個階段半影食終(6:26)發生時,月亮已經西落(6:10)。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 377px; overflow: hidden; width: 421px;"><span style="font-family: inherit; font-size: large;"><img height="377" src="https://lh4.googleusercontent.com/6KvxP9ToH7buIVXVhw3EFc3lKfUrOyvpgv_AYUQsw07oQ-lSUu7HSgU2-z5zssdnwNstvoKk-Zz356Psdv_iLwttsK8AsZT8A3P0b0CXPrq_XKvX7nYrIaZMnW6NYEIDKDqniC48vCvWGRSXAdCsqm7fWe3wbNSE_rfzE6Nq7d_OgQp96SX_RqnfadjeKA" style="margin-left: 0px; margin-top: 0px;" width="421" /></span></span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">12月15日(農曆初三),雙子座流星雨⭐⭐⭐⭐</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">極大期發生在台灣時間清晨3:00,不受月光影響,非常適合觀賞。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">今年的英仙座與雙子座流星雨都不受月光影響,相當難得,值得期待!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快!</span></span></p><span style="font-family: inherit; font-size: large;"><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></span><br /></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-87900695077085954262022-12-04T13:32:00.010+08:002022-12-29T11:36:06.349+08:002022年12月星空預報<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">時間好快,2022年已經剩下最後一個月了,你今年看到什麼?又錯失哪些天象呢?</span></span></p><p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">如果錯過今年6月時的五星同現嗎?12月底的傍晚還有機會看見。</span></span></p><div class="separator" style="clear: both; text-align: center;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_7sulT8IR8DXZodIRqy8XkEjGrPuzcU0bBychRtH9AQzrOXThgobMcN27K47BKCbYGRSjoq1Ox23wmW0_sXH57sGzw3aNTjvIgmi1VXJJ6itb57Mf2NrP-101td_LPd8b_0AVV0khWG2OcRDgJueFJ7riFBp0DeGMwL5ipcbF4W77qRXdG44O6M4dYQ/s7360/DSC_6947%20%E4%BA%94%E6%98%9F%E5%90%8C%E7%8F%BE%EF%BC%BF%E6%A8%99%E7%A4%BA.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4912" data-original-width="7360" height="428" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_7sulT8IR8DXZodIRqy8XkEjGrPuzcU0bBychRtH9AQzrOXThgobMcN27K47BKCbYGRSjoq1Ox23wmW0_sXH57sGzw3aNTjvIgmi1VXJJ6itb57Mf2NrP-101td_LPd8b_0AVV0khWG2OcRDgJueFJ7riFBp0DeGMwL5ipcbF4W77qRXdG44O6M4dYQ/w640-h428/DSC_6947%20%E4%BA%94%E6%98%9F%E5%90%8C%E7%8F%BE%EF%BC%BF%E6%A8%99%E7%A4%BA.jpg" width="640" /></a></div><div class="separator" style="clear: both; text-align: center;"><span style="text-align: left; white-space: pre-wrap;"><span style="font-size: large;">五星同現,水星、金星、火星、木星和土星同時出現在日出前的天空。2022/6/24李昫岱攝於台南安平</span></span></div></div><span id="docs-internal-guid-bf99ebd7-7fff-c7cd-c022-2834ab145f68"><div class="separator" style="clear: both; text-align: center;"></div><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: inherit; white-space: pre-wrap;"><span style="font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: inherit; white-space: pre-wrap;"><span style="font-size: large;">最後一個月還是很精彩,千萬不要再錯過了!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">12月8日(農曆十五)</span></span><span style="font-size: x-large;"><span style="color: #990000; white-space: pre-wrap;">,<a href="https://calendar.google.com/calendar/u/0/r/eventedit/Mzk3dGJ1YnFvbDN1djZuMjAzcTRvcWNhbmggbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">火星衝</a></span><span style="color: #990000; font-family: inherit; white-space: pre-wrap;"><a href="https://calendar.google.com/calendar/u/0/r/eventedit/Mzk3dGJ1YnFvbDN1djZuMjAzcTRvcWNhbmggbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">,火星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">12月8日是火星衝,火星看起來又紅又亮,當火星、地球和太陽三個天體排成一直線時,天文上稱作「衝」。火星在衝的位置,與地球差不多是最靠近的時候。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">火星衝是最佳觀測火星的時機,入夜後就可以在東方地平線上看見紅色的火星,這時火星的亮度接近-1.9等,比全天最亮星天狼星(-1.5等)還亮!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">這次的火星衝發生在滿月時,正好是形成火星合月,火星與月亮相距約4度。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">12月14日(農曆廿一),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NjkxbTI5OG1mZW90bXQ2NGpzYjRzNDJxaHQgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">雙子座流星雨</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">這次的雙子座流星雨極大期發生在晚上9點。國際流星組織(IMO)預報極大期時最多會出現每小時150顆流星,不過這是在極佳觀測情況下的預報,一般情況下,一個小時的流星數會少很多,比百貨公司週年慶的折扣還大。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">另外,晚上10點半月亮東升後,月光會降低看到流星的數量。如果要觀賞這次的雙子座流星雨,可以在日落後找個光害小的地方,好好把握月亮東升前的時刻。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">12月21日(農曆廿八),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NzNzbHJkZ2cyY3NqOWNnbGgzMGx0cGc4b2YgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">水星東大距</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">水星這時離太陽的角度最遠,是最容易看見水星的時候,日落後西方地平線上,可以看到平常較少見的水星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">除了水星,還可以留意水星附近的金星,另外天空中還有土星、木星和火星,能夠同時看見五顆行星機會難得。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">12月24日(農曆初二),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/Nm1mdXNzcjZwcDNtY20waWdmYmJycHYxMzcgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">金星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">金星開始出現在日落後的西方,接下來幾個月的時間都有機會欣賞到金星合月,金星與細細的眉月構成一幅美麗的風景。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">12月25日(農曆初三),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/M2I3dTQ2YzZudmY3YnVvb2F2b281c29zdW4gbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">水星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">金星合月隔天是水星合月,金星與水星這時都相當靠近月亮,可以欣賞眉月與這兩顆行星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">12月29日(農曆初七),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NmFiaWg4YTk3Y2VpczZjbWdvbXYwazA2dTEgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">金星合水星</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">金星合水星,金星與水星相距的角度約1.4度,可以在日落後西方的地平線上看見它們。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快!</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-48935695194489204322022-11-01T13:31:00.007+08:002022-12-29T12:04:40.922+08:002022年11月星空預報<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">時間過好快,2022年只剩兩個月,不過期待已久的月全食即將來到!</span></span></p><span id="docs-internal-guid-d53f5f69-7fff-b093-6268-07921f775982"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">另外,月全食時還發生月掩天王星,天王星相當暗,肉眼幾乎看不到,透過望遠鏡或攝影還是有機會紀錄這罕見時刻!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">還有,11月17日清晨的月掩軒轅十三,同樣不能錯過。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">11月的天象就全包給月亮就好惹</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">11月8日(農曆十五),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/XzhncGpjZTlqNmtvNDRiYTU4bDBqMmI5azcwczNnYjlwOGNwamNiOWc3NTBqNmU5cDZsMmo4ZTlsNnMgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">月全食,月掩天王星</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">這次的月全食月球在地球本影內(食既到生光)的時間長達1小時25分,這段時間月亮會呈現血紅色,詭異的月色只有在月全食才能看見!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">這次月食發生時,同時發生月掩天王星,時間大約是食甚到生光後。如果想看難得的月掩天王星,建議還是透過望遠鏡,或利用長鏡頭相機紀錄!</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><span style="font-family: inherit; font-size: large;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2E8EX-5_VEY3iPnKmy3w3JhdZZ5HUFOJ85vcXXz6ymRmqD3Bk6AVboc3xic76mz2wJcGwfGRvEY1g94nX6DdOnMNKHh-ciF7830ZbBz3B3wtDKTYEfhxM4EDtpnGry4Lk5ts57k0YkYZJBZYwuKtQrn0ZygJin18RvE3hgkhO5sAk1_1WGFN95_tJTA/s3000/%E6%9C%88%E5%85%A8%E9%A3%9F.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="2250" data-original-width="3000" height="480" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2E8EX-5_VEY3iPnKmy3w3JhdZZ5HUFOJ85vcXXz6ymRmqD3Bk6AVboc3xic76mz2wJcGwfGRvEY1g94nX6DdOnMNKHh-ciF7830ZbBz3B3wtDKTYEfhxM4EDtpnGry4Lk5ts57k0YkYZJBZYwuKtQrn0ZygJin18RvE3hgkhO5sAk1_1WGFN95_tJTA/w640-h480/%E6%9C%88%E5%85%A8%E9%A3%9F.jpg" width="640" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div></span><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: inherit; font-size: large;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">以下是使用</span><a href="http://stellarium.org/" style="text-decoration-line: none;"><span style="color: #1155cc; font-variant-east-asian: normal; font-variant-numeric: normal; text-decoration-line: underline; text-decoration-skip-ink: none; vertical-align: baseline; white-space: pre-wrap;">Stellarium</span></a><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">軟體算出來月掩天王星各地的開始與結束參考時間,你也可以用Sterrium算算看。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><div align="left" dir="ltr" style="margin-left: 71.8672pt;"><table style="border-collapse: collapse; border: none;"><colgroup><col width="104"></col><col width="111"></col><col width="126"></col></colgroup><tbody><tr style="height: 21pt;"><td colspan="3" style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">月掩天王星各地開始與結束的時間</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><span style="font-family: inherit; font-size: large;"><br /></span></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">開始時間</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">結束時間</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">台北</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">19:05</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">19:55</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">台中</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">19:02</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">19:53</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">台南</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">19:01</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">19:49</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">高雄</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">19:01</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">19:48</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">花蓮</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">1904</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">19:52</span></span></p></td></tr></tbody></table></div><span style="font-family: inherit; font-size: large;"><br /><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">11月17日(農曆廿四),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NXVmbHVibHQzNjhiMHJuOW10czdtdGVxb2sgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">月掩軒轅十三</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">軒轅十三是顆3.5等的恆星,位在獅子座前胸,光害不嚴重的地方肉眼可見。要看見月掩軒轅十三並不難,台灣北部掩的時間比較長,高雄可能只能看見軒轅十三從月亮的邊緣畫過,沒有發生掩星的現象。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><div align="left" dir="ltr" style="margin-left: 71.8672pt;"><table style="border-collapse: collapse; border: none;"><colgroup><col width="104"></col><col width="111"></col><col width="126"></col></colgroup><tbody><tr style="height: 21pt;"><td colspan="3" style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">月掩軒轅十三各地開始與結束的時間</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><span style="font-family: inherit; font-size: large;"><br /></span></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">開始時間</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">結束時間</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">台北</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">4:32</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">5:27</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">台中</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">4:37</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">5:19</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">台<a href="https://drive.google.com/drive/folders/153CCALEsNOQvM9oMaXgyX4BsjFAKOv3k?usp=sharing">南</a></span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">4:49</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">5:08</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">高雄</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">-</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">-</span></span></p></td></tr><tr style="height: 0pt;"><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">花蓮</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">4:38</span></span></p></td><td style="border-bottom: solid #000000 1pt; border-color: rgb(0, 0, 0); border-left: solid #000000 1pt; border-right: solid #000000 1pt; border-style: solid; border-top: solid #000000 1pt; border-width: 1pt; overflow-wrap: break-word; overflow: hidden; padding: 5pt; vertical-align: top;"><p dir="ltr" style="line-height: 1.2; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">5:23</span></span></p></td></tr></tbody></table></div></span><div><br /></div>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-24892710073525064812022-09-29T13:18:00.001+08:002022-09-29T13:18:21.249+08:00 2022年10月星空預報<p><br /></p><span id="docs-internal-guid-c1003e85-7fff-65be-23a9-eba40c49113d"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 732px; overflow: hidden; width: 489px;"><span style="font-family: inherit; font-size: large;"><img height="732" src="https://lh3.googleusercontent.com/wauxJRKoUAQapA3-xVUyA4pUjibBW_NfZ1B1xPUUjlWBg1PTdYOlD64M79vuE8j72QraG334a_oVFCw23bwIbKxEfOO-ogZCQFmodEns67lC2ui4jh5w1SfWsMbUuamGVrttarcw--hY1IXS4ibWGIIlP4ZgdBy7xbm0BdfYkAJGL9sNo74ytCkhLg" style="margin-left: 0px; margin-top: 0px;" width="489" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">水星合月,2022/7/30傍晚,李昫岱攝於台南安平</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">10月9日(農曆十四),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/MTEwcjIwcWVxamhodmlpOTMwb3VmMHZxMTggbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">水星西大距</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">水星靠太陽很近,不容易看見,只有在東大距和西大距前後,較適合觀看水星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">水星西大距是水星位在太陽西側最遠的位置,日出前出現在東方地平線上,這時最容易看見水星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">10月23日(農曆廿八),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NHJpMHZyZDgxZm5zbHZyYmNsMjQzNmU5cmUgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">金星外合</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">好一陣子沒看見金星了,最近這段時間金星相當靠近太陽,所以看不見它美麗的倩影,接下來金星即將出現在日落後的西方。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 449px; overflow: hidden; width: 443px;"><span style="font-family: inherit; font-size: large;"><img height="449" src="https://lh6.googleusercontent.com/kz2Op2eDa1pPyMEgVxCEuDhGVyErZU9SonbkORGURa-ix6Q8CgkU3j79Ov3kl5_5KzfPc1EM79EbPzxRzFw8hNdzB1XRL4nSEKm5fSjmdn6gGIhwYhoeJGuuwsLCzGdYvkUemAYYLPSaygl1Iel3sqI2ZqxSCZQRteiKzL7icQKMWgRSu7gKLoqDfA" style="margin-left: 0px; margin-top: 0px;" width="443" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">金星、地球和太陽的相對位置,這三個天體連成一線稱為合,金星在太陽與地球之間,稱為內合,在太陽與地球的外側,稱為外合。金星從外合到內合之間,出現在黃昏,稱為昏星,從內合到外合期間,出現在清晨,稱為晨星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">金星外合以後,從晨星變成昏星,接下來的幾個月,金星會出現在日落後的西方,一直到明年8月13日金星內合為止。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">10月24日(農曆廿九),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/M2FqNThwcmRucTYzMHBra2VvOXJsZXRsNnMgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">水星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">10月9日剛過水星西大距,10月24日相當適合觀看水星合月。水星配上細細的殘月,非常推薦觀賞!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快!</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-86431340385727568132022-09-13T13:09:00.004+08:002022-09-13T14:36:08.937+08:00一閃即逝的綠閃光<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">各種天象中,綠色是較少見的顏色,連星星都沒綠色的。綠閃光(green flash)算是少數的例外,不過綠閃光一閃即逝,好像不讓人好好觀察它難得一見的綠光。</span></span></p><p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p><span style="font-size: large;"><span style="white-space: pre-wrap;">綠閃光</span><span style="font-family: inherit; white-space: pre-wrap;">有好幾種,最常提到或看到的是傍晚時,太陽漸漸西下,最後落入海平線的上緣會從黃色突然變成綠色!綠光一閃即逝,只有出現短短的1、2秒,然後太陽就整個沈入海平面。</span></span></p><span id="docs-internal-guid-208da9ee-7fff-2b8f-0a89-3575966b42db"><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">綠閃光不是太陽本身的顏色改變,而是太陽光與地球大氣作用的結果。綠閃光並不會每天出現,只有大氣條件合適時才能看見,算是比較罕見的現象。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 333px; overflow: hidden; width: 602px;"><span style="font-family: inherit; font-size: large;"><img height="333" src="https://lh4.googleusercontent.com/pksdLvtwGu226DTaBnbb4W6lU0QG4TjnFUqVJhcnNFl6smi7fD_sovpKkbdUEwgIHPLW9DjMse2qVQgYykMEw9Z6OGZyhTomy3r1SxF2HkjgFGMSSBiY3Q11L4ZsTbUumKgDqgeQTAvXgFigOas2seE" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">太陽的盤面落入海平線的瞬間可能會出現綠閃光。2021年7月8日李昫岱攝於安平</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">綠閃光需要大氣折射先把綠光分離,然後加上蜃景的放大才會出現。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">綠光從哪裡來?</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">太陽的顏色是白色,而太陽的白光是由紅、橙、黃、綠、藍、靛、紫七種顏色組成,如果太陽光通過三稜鏡時就會折射出七彩顏色。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">地球大氣層也可以扮演三稜鏡的角色。欣賞夕陽時,太陽其實早就在地平線下,透過地球大氣折射,讓你可以看見地平線下的太陽。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">不同顏色的光折射率不一樣,大氣層就像三稜鏡一樣,讓太陽的上緣呈藍綠色,下緣呈紅色,這樣的綠、紅分離的效應愈靠近地平線愈明顯。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 451px; overflow: hidden; width: 602px;"><span style="font-family: inherit; font-size: large;"><img height="451" src="https://lh3.googleusercontent.com/vpAIC6PKTxvOPJtjonCF0P70gYo66F0dA5MtNE4HmlQ9zJHwYMJ39Qf8IzjlYiUEANepvSXvt33f618BuYLwzS8D1CgMKlb3Ga-dnaDEmdb6FVklsga6tSwEhzgFAZ8YrWeMKJAGmEGqeuR2wR9Uy2I" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-size: large;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit;">你看見太陽接近地平線時,其實太陽已經沒入地平線下,太陽經過地球大氣的折射後,讓你可以看見它。折射後的太陽呈扁平的橢圓,上緣會偏藍綠色,下緣偏紅色,不過大氣折射效應很小,</span></span><span style="font-family: inherit; white-space: pre-wrap;">不容易清楚看見這樣的顏色變化。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">太陽接近地平線時,上緣的藍綠色是綠閃光綠色的來源。不過大氣的折射效應並不大,太陽透過大氣折射還不足以形成綠閃光,還需要蜃景放大才有機會出現,這也是為什麼綠閃光罕見的原因。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">蜃景加持</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">天氣炎熱時,你有沒有注意到柏油路面上出現倒影,就像馬路上有水出現景物或車的反射,這種現象稱為蜃景,是柏油路面空氣溫度高造成的現象。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 396px; overflow: hidden; width: 602px;"><span style="font-family: inherit; font-size: large;"><img height="396" src="https://lh6.googleusercontent.com/HIumrB6CWK0IBX0V9xK2fuRuuBAPEI4sAK0Kg8uB_QvWNaoWLWBvn1PpVqIw5KO_QAIU-ACE0kkYJGcvZyThLYMga4x4ARrJBWSB9DDzMewOmZk38YFKxakYSKOa_8FLvPtNr2iBk3jjOtdbKaciUW0" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">日落蜃景,左邊的兩張圖中的太陽呈現Ω形狀,太陽下方的部分不是海面的反射,而是蜃景造成的像,太陽往下沈,下方太陽的像往上升,最右圖的太陽呈扁平的透鏡狀,這是上下兩個太陽結合而成的。2022年3月10日李昫岱攝於台南安平。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 451px; overflow: hidden; width: 602px;"><span style="font-family: inherit; font-size: large;"><img height="451" src="https://lh3.googleusercontent.com/uOGdvLISQenBsySz7COk7ukzSnX1Qr-x_SB9lIYcSNqMcSPd2lUEIc3p3-n7Z7EvjqNmJO-ZPTKqrrwLy5Sgc5Tho-WL5eqiynRF5rI2cKfiPnCzWRKV447sUToU3VPbsDySg5PyKX5XbC3H-1xPAyc" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">夕陽下的蜃景,太陽往下沉,下方蜃景形成的太陽往上升,當兩太陽接觸就會形成Ω形狀(最左圖)。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">如果靠近海平面空氣的溫度較高,而且溫差變化大,日落時可能就會出現蜃景。當太陽漸漸往下沈,蜃景形成的太陽則漸漸往上升。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">前面提到折射的效應愈靠近地平線愈明顯,所以太陽上緣的綠光在靠近地平線時會達到最大,綠光再加上蜃景的放大就可能形成綠閃光!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 467px; overflow: hidden; width: 602px;"><span style="font-family: inherit; font-size: large;"><img height="467" src="https://lh3.googleusercontent.com/eudL4pArS54wpTSTRdsrEfNfnyyM98T5lRToDeHVche6voosHOHaDB6QYoHnyxKAFbB9mAEawPBjQfhj1M0eUBVd3tFUe5FASYTTgls_WT16Bz-1iHKiDYWP5yxwe8GVsvjpLkNeShGt2tkxFvVS200" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">藍閃光比綠閃光還罕見,通常只有在大氣透明度很好,太陽的藍光沒有完全散射掉才會出現。2022年7月21日李昫岱攝於台南安平</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">除了綠閃光,如果大氣條件好,還有機會看見藍閃光和,甚至紫閃光!一般的情況,藍光和紫光容易被大氣散射,只會出現綠閃光。如果大氣透明度好,藍光和紫光就能穿透大氣形成更罕見的藍閃光和紫閃光!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">綠閃光要怎麼看?</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">要看見綠閃光,其實不是當地傍晚天氣好,而是太陽西下的地平線上不能有雲,雲把落日遮住自然看不見綠閃光。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">看綠閃光,安全最重要。如果太陽看起來不刺眼,呈現紅色,那就只能看夕陽,十之八九看不到綠閃光。太陽靠近地平線時,如果還很亮,眼睛無法直視,呈現黃白色,表示當天有可能看見綠閃光,這時要特別小心太陽的強光,眼睛不能一直盯著太陽看。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">另外,千萬不要用望遠鏡或雙筒望遠鏡看綠閃光,太陽光經過望遠鏡聚焦後會造成視網膜受傷,甚至造成眼睛永久傷害。</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;"><br /></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">有人說看見綠閃光會帶來好運,其實能看見綠閃光就是好運,因為它真的相當罕見,希望你也有機會目睹那一閃即逝的綠光!</span></span></p></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-43722957496447368972022-08-31T20:51:00.002+08:002022-09-01T10:30:44.141+08:00 2022年9月星空預報<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">時間到了9月,雖然白天還是熱,不過清晨和黃昏可以感受到溫度下降、有秋天的感覺,找個天氣晴朗的夜晚看看星星和月亮吧!</span></span></p><span id="docs-internal-guid-3c3f965c-7fff-5d9d-1aca-af0c51d59815"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: x-large;"><span style="color: #990000;">9月7日(農曆十二),</span><a href="https://calendar.google.com/calendar/u/0/r/eventedit/MGg3aGtsYnBtNTkyZjByNXQ5ajU0aW1qMWwgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc"><span style="color: #2b00fe;">畢宿五合火星</span></a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">橘紅色的畢宿五是金牛座裡的最亮星,象徵金牛的眼睛。畢宿五位在黃道附近,沿著黃道運行的行星有時會靠近畢宿五。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">9月7日,火星會接近畢宿五,是「畢宿五合火星」,畢宿五與火星相距約4度。這時紅色的火星比畢宿五還亮,乍看之下好像金牛多了一隻眼睛!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: x-large;"><span style="color: #990000;">9月23日(農曆廿八),</span><a href="https://calendar.google.com/calendar/u/0/r/eventedit/M2ZxNTdkaDU5YjcxbTgzZjJvOWxwbDI1aW4gbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc"><span style="color: #2b00fe;">秋分</span></a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">從地球觀察日出的位置,夏至日出的位置最北,冬至則是最南,春分和秋分時,日出的位置在正東方。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">秋天沒有明確起始的時間,不過西方習慣上把秋分當作秋天的開始。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: x-large;"><span style="color: #990000;">9月27日(農曆初二),</span><a href="https://calendar.google.com/calendar/u/0/r/eventedit/MjUwcnI5YW1hbjN1amo3cDR2c2c3Zm1zYjIgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc"><span style="color: #2b00fe;">木星衝</span></a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">木星衝是指太陽、地球和木星三個天體的位置排成一線,這時差不多是木星離地球最近的時間,木星看起來最大、最亮,是一年中最佳觀測木星的時機。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">專業或業餘的天文學家都會利用木星衝的時候觀測木星,甚至連哈伯望遠鏡也不例外!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><div class="separator" style="clear: both; text-align: center;"><span style="font-family: inherit; font-size: large; margin-left: 1em; margin-right: 1em;"><img height="601" src="https://lh6.googleusercontent.com/OhtuoIINOg4lvDvKZYPikwd6j5AVf3t29hmsPJSxCzdzWFBshY-w9O1F80NjojvJB6yb5v9bw-epdoJ3VTDJOQn-Y9zTd13de--xnw1bzV3TdcTkI6O10rrIpWtw0aNYVY2SeNdJTioEPqJU9pJSswOIc9s6Gi-16-9uwwVohsAWJkObcrCWXsAvgw" style="margin-left: 0px; margin-top: 0px;" width="602" /><br /></span></div><span style="font-family: inherit; font-size: large;"><div><span><span style="font-family: inherit; font-size: large;"><span style="white-space: pre-wrap;">哈伯太空望遠鏡拍攝的木星,拍攝的時間是2017年4月3日,是那年木星衝(4月7日)的前幾天。影像來源:NASA</span></span></span></div><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快!</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-48013000910112878642022-08-29T10:04:00.000+08:002022-08-29T10:04:07.555+08:00 韋伯與哈伯望遠鏡到底誰比較厲害?<p><span style="font-size: large;"><span style="white-space: pre-wrap;">韋伯與哈伯望遠鏡到底誰比較厲害?</span><span style="font-family: inherit; white-space: pre-wrap;">韋伯太空望遠鏡最近公佈了首批的科學影像,終於看到敲碗好久的結果,韋伯的影像中顯示許多以前沒看過的東西。</span></span></p><p><span style="font-family: inherit; font-size: large; white-space: pre-wrap;">有人說韋伯是哈伯的繼任者,大家可能好奇,韋伯和哈伯到底誰比較強?</span></p><p><span style="font-family: inherit; font-size: large; white-space: pre-wrap;"><br /></span></p><p><span style="font-family: inherit; font-size: large; white-space: pre-wrap;"></span></p><div class="separator" style="clear: both; text-align: center;"><span style="font-family: inherit; font-size: large; white-space: pre-wrap;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj86OLrg0hXIwa0BwV_cB8oeOhWYVHU5XPeYmEoR19GdThQBCa6RTuQqBgWuBPGSEz3yMz9e_WhS1y2-ihgx2F26A3ZISLD9KRP1uvwUhUG63SmxhP3_7AKq-sAS0ORXyyyooefQD848onI7UzInO7mDkJgF2BogKGz29N4zKhh2kAwsmBeSyrRkI7ZVw/s8000/hubble%20vs.%20webb.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="6000" data-original-width="8000" height="472" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj86OLrg0hXIwa0BwV_cB8oeOhWYVHU5XPeYmEoR19GdThQBCa6RTuQqBgWuBPGSEz3yMz9e_WhS1y2-ihgx2F26A3ZISLD9KRP1uvwUhUG63SmxhP3_7AKq-sAS0ORXyyyooefQD848onI7UzInO7mDkJgF2BogKGz29N4zKhh2kAwsmBeSyrRkI7ZVw/w630-h472/hubble%20vs.%20webb.jpg" width="630" /></a></span></div><div class="separator" style="clear: both; text-align: center;"><span style="font-family: inherit; font-size: large; white-space: pre-wrap;"><br /></span></div><span style="font-family: inherit; font-size: large; white-space: pre-wrap;"><br /><span style="font-family: inherit;">這個問題有點難回答,因為兩部望遠鏡都是當代科技的結晶。哈伯是1990年升空的王者,韋伯是30年後科技進步下的產物,我試著用客觀的方式來比較這兩部太空望遠鏡。</span></span><p></p><span id="docs-internal-guid-364a4524-7fff-63b8-054c-c219aad6ab80"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">哈伯vs.韋伯</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">哈伯的主鏡直徑是2.4公尺,韋伯則是6.5公尺,韋伯的主鏡直徑比哈伯大2.7倍,這也是大家最常比較的部分。如果主鏡大就比較厲害,那麼夏威夷大島上的凱克10公尺望遠鏡不就比哈伯和韋伯更強!?</span></span></p><span style="font-family: inherit; font-size: large;"><br /><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 356px; overflow: hidden; width: 527px;"><span style="font-family: inherit; font-size: large;"><img height="356" src="https://lh6.googleusercontent.com/M2vIaPoBNM4pr3WgXhRSSGmXf8-xjkKh3940BeAzCzzsc5Wiaqj3BeltNpfoVZjvg3yj4UfcFgZvWKP2SUgy4qRs4XPw0MELUW3M7UMvJw5rgmUxIBeMciv2SZBdc6xUoMkjAy4t5AESGgux7_NereI" style="margin-left: 0px; margin-top: 0px;" width="527" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">圖:哈伯的主鏡直徑是2.4公尺(左),韋伯的則是6.5公尺(右)。影像來源維基百科</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">哈伯與韋伯觀測的波段不同,用途也不一樣。哈伯主要觀測的波段在可見光,可見光是指人類眼睛可以看見的光或顏色範圍,也就是紅、橙、黃、綠、藍、靛和紫。從紅光到紫光,光的波長由長到短,紅光的波長大約是0.62–0.74微米(1微米=0.001公釐),紫光的範圍則是0.38–0.45微米。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">紅外光是指比紅光波長更長的光,也就是波長比0.7微米更長,這是韋伯望遠鏡主要觀測宇宙的波段。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">哈伯和韋伯太空望遠鏡觀測的波段,一個在可見光,另一個在紅外光,所以在功用上本來就不一樣,如果要比較的話就要小心,不然就像拿橘子跟蘋果相比,拿不同的東西做比較顯得很突兀。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">哈伯和韋伯哪個解析度高?</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">哈伯與韋伯可以拿來做比較的是解析度,解析度的值(角秒)愈低,表示能看到天體愈細微的部分,解析度跟主鏡直徑和觀測的波長有關。望遠鏡主鏡愈大,解析度愈好;另外也跟觀測的波長成正比。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-family: inherit; font-size: large;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">解析度(角秒)∝0.25*</span><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">觀測波長(微米)/</span><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">主鏡直徑(米)</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">以下兩張影像分別是史匹哲太空望遠鏡(Spitzer Space Telescope)和韋伯拍的天空中同一區域紅外光影像,拍攝的紅外波長也差不多(史匹哲:8微米,韋伯7.7微米),不過兩幅影像的解析度卻差很多,韋伯的影像中可以看到更多的細節,史匹哲則好像糊成一團。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 460px; overflow: hidden; width: 602px;"><span style="font-family: inherit; font-size: large;"><img height="460" src="https://lh4.googleusercontent.com/aDopgfWZILfz1mUxR53TibVPaROpipAw82c1fvNLosJZsWEL1TXJkVwN8OBn7RdVfkKG5HMyUvzvryQ2lOilsmYfXha6yAI9Z9zYSM-JUkSANmCNjOhavCFJ75Bo3UQrDiLBOqqztWcb5jfvhgjdPZI" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">史匹哲與韋伯望遠鏡的影像解析度比較,顯然韋伯的影像解析度高很多。影像來源NASA</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">當觀測的波長一樣時,解析度跟觀測望遠鏡的主鏡直徑成反比。史匹哲的主鏡是0.85公尺,所以韋伯的解析力是史匹哲的6.5/0.85=7.8倍!主鏡的大小直接反應在解析度上,韋伯與史匹哲在解析度上高下立判!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">解析度除了跟主鏡的直徑成反比,也跟觀測的波長成正比。所以同一面主鏡觀測天體,用愈短的波長觀測解析度愈好。下圖是史匹哲望遠鏡觀測M81星系的結果,同樣0.85公尺的主鏡觀測,隨著觀測波長的增加,解析度變差。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 569px; overflow: hidden; width: 455px;"><span style="font-family: inherit; font-size: large;"><img height="569" src="https://lh5.googleusercontent.com/F01_ceiZ4OEPK-F0aA4fkt0wfci6TG16OclYqvUga6fkzgT_z25xmTJZOxgdXNzvQWIdHxuwul1VOOmCtJnZ3T95vt22yGRNTdm87bUoK0Q0Nd1vMVJCiCW8HzrLvupZtj_QTHaTQDQAltdRARY45BE" style="margin-left: 0px; margin-top: 0px;" width="455" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">史匹哲望遠鏡拍攝的M81星系,拍攝的波段是24(上)、70(中)、160微米(下),拍攝的波段愈長,解析度愈差。影像來源NASA</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">解析度還跟主鏡鏡面有關</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">前面提到解析度跟主鏡直徑與觀測波長的關係有一個重要前提,主鏡必須研磨到完美、光滑,也就是主鏡上不能出現高低起伏。如果主鏡不完美,像遊樂場裡的哈哈鏡,不能聚焦成像,解析度自然不好。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">波長愈短對鏡面的要求愈高。哈伯太空望遠鏡的鏡面對0.5微米波長更長的光是完美的,比0.5微米波長更短的光波則呈現不完美,韋伯望遠鏡的主鏡則是對2微米更長的波長是光滑的。(光學上,物理學家的說法是哈伯和韋伯分別在0.5和2微米達到繞射極限。)</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">哈伯和韋伯望遠鏡最佳解析度分別在0.5微米和2微米,根據前面的解析度公式,哈伯在0.5微米的解析度是0.05角秒,而韋伯在2微米的解析度是0.08角秒,結論是哈伯的解析度比韋伯稍微好一點!也就是哈伯老當益壯,一點也不比韋伯差。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><div class="separator" style="clear: both; text-align: center;"><span style="border: none; display: inline-block; height: 288px; margin-left: 1em; margin-right: 1em; overflow: hidden; width: 602px;"><span style="font-family: inherit; font-size: large;"><img height="288" src="https://lh3.googleusercontent.com/JHwDhsrN5q2nZK10A9Q1kIkEUOkoN1U0GFzsEsT-5I020N0Wd-qG-vCxvyLgZNjfUBbeIdESttZ2krFO8PmTKGgIh-aQh9DbTY4FLsNgctFJXrpSXbrNVoiugNv4vJB0ECqHdeqeIy1SGNNXvEVXLA" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></div><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-family: inherit; font-size: large;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">史蒂芬五重星系,哈伯(左)與韋伯(右)拍攝的影像,從解析度來看兩部太空望遠鏡不相上下。影像來源NASA</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">從哈伯到韋伯</span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">天文學家從1990年開始,透過哈伯望遠鏡研究宇宙,這三十年來科學家已經把哈伯的功能發揮到極致,我們對宇宙的了解很多都來自哈伯的觀測。不過這三十年的努力也讓天文學家發現哈伯不足的地方,科學家知道關鍵在紅外線觀測能力。前一代的紅外望遠鏡史匹哲無法達到需求,天文學家只能殷殷期盼韋伯。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">韋伯首批公布的影像中,幾乎都是哈伯曾經拍過的天體,從科學上來說,比較可見光和紅外影像資料可以對目標天體更多了解,不過我認為這應該是韋伯對哈伯致敬的方式,感謝哈伯三十多年的貢獻!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">韋伯站在巨人的肩膀上,必定能看得更暗、更遠!</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-13168332859151606102022-08-10T13:46:00.005+08:002022-08-10T13:46:57.524+08:00 韋伯望遠鏡的新發現:車輪星系<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">目前宇宙中的星系大致可分為三種:橢圓星系、螺旋星系和不規則星系,顧名思義,它們的名稱來自它們的形狀。不過宇宙那麼大,總有些例外。</span></span></p><span id="docs-internal-guid-30a18160-7fff-8d2e-352e-308cb2d5bb30"><span style="font-size: large;"><br /><p dir="ltr" style="font-family: inherit; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">車輪星系(Cartwheel Galaxy, ESO 350-40)的樣子不屬於前面提到的三種星系,是星系碰撞的結果。車輪星系原本是一個螺旋星系,大約2到3億年前,一個較小的星系直接撞上車輪星系的中心,然後小星系穿過並離開車輪星系。</span></p><br /><p dir="ltr" style="font-family: inherit; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 553px; overflow: hidden; width: 602px;"><img height="553" src="https://lh5.googleusercontent.com/NZ2EhbgCBstKawE5YCPl6HAAf_56dCB6eiSAPWllpm2iA3f0yf3wIsCrB0GriwOZURikQUeCY-JOExLxpvZNp5DavmAkt99cxrLme6O_hn2FVM16an1Umhum5DStjSamopNG9tzN92NOomZ_A2EnTI0" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></p><p dir="ltr" style="font-family: inherit; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">韋伯太空望遠鏡的車輪星系影像,撞擊車輪星系的小星系並沒有在影像中。影像中的藍色代表近紅外線,主要是年輕恆星發出的光,紅色代表中紅外線,是年輕恆星加熱塵埃後發出的光。影像來源NASA。</span></p><br /><p dir="ltr" style="font-family: inherit; line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">劇烈的撞擊不僅改變車輪星系原本螺旋星系的外貌,更引發車輪星系劇烈的恆星形成。車輪星系外圍(輪胎的部分)由許多年輕恆星組成,這些恆星發出的光和熱讓附近的塵埃發出中紅外光。</span></p><div style="font-family: inherit;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div><div style="font-family: inherit;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div><div style="font-family: inherit;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;">延伸閱讀</span></div><div><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><a href="https://webbtelescope.org/contents/news-releases/2022/news-2022-039">Webb Captures Stellar Gymnastics in the Cartwheel Galaxy</a></span></div><div><div><a href="https://www.universetoday.com/156994/jwst-turns-its-gaze-on-the-cartwheel-galaxy/">JWST Turns Its Gaze on the Cartwheel Galaxy</a></div></div></span></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-51958757190657274912022-08-06T12:50:00.002+08:002022-08-06T12:50:53.483+08:00日暈要怎麼拍?<p><span style="font-family: inherit;"> <span style="font-size: large;">台灣的春夏兩季是日暈最常出現的季節,常常聽到朋友抱怨,拍日暈時被太陽光照到快瞎了,這裡就教大家簡單實用的日暈拍攝技巧。</span></span></p><p><span style="font-family: inherit;"><span style="font-size: large;"></span></span></p><div class="separator" style="clear: both; text-align: center;"><span style="font-family: inherit;"><span style="font-size: large;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEialvO7Pj-x6XXjVGOFbO3qMVcJj4MVipyIGa468E1POx1azzgQDFY4GID56Gr8yk-CfdfikoZSbjntpiZJcUdEFVsExZzeNQPma3aCQCtR5sMKIyouguI_QfvPFtwB7R0bldTyTBySd9EWgNx0SqtPlhE_sT0-ER785YTW7RhZmTz5o9XuXdrwxHpIMA" style="margin-left: 1em; margin-right: 1em;"><img alt="" data-original-height="4032" data-original-width="3024" height="658" src="https://blogger.googleusercontent.com/img/a/AVvXsEialvO7Pj-x6XXjVGOFbO3qMVcJj4MVipyIGa468E1POx1azzgQDFY4GID56Gr8yk-CfdfikoZSbjntpiZJcUdEFVsExZzeNQPma3aCQCtR5sMKIyouguI_QfvPFtwB7R0bldTyTBySd9EWgNx0SqtPlhE_sT0-ER785YTW7RhZmTz5o9XuXdrwxHpIMA=w494-h658" width="494" /></a></span></span></div><span style="font-family: inherit;"><span style="font-size: large;">巧妙的利用路燈或花遮住太陽,可以拍出美麗的日暈。2022/8/6李昫岱攝於台東太麻里<br /></span></span><p><span style="font-family: inherit;"><span style="font-size: large;">首先,找一路燈。</span></span></p><p><span style="font-family: inherit;"><span style="font-size: large;"></span></span></p><div class="separator" style="clear: both; text-align: center;"><span style="font-family: inherit;"><span style="font-size: large;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEiM-UZnRtlG1WcxC6O-zUouk7x9tc0f_yC4ujkCY2I05bzSXH16tRpsBlqep6ow-LIk4fRb0lniNWmF6HHIAW5a-i27plxYuViBFaLMPK7DPdBaO_QpG4MtQ8ZrzXy48Upo-cmqxcaqtnDyRacmP5pVGVUytKG6Nt3vl4NFocUyPh2A36snfVvCMwQQVA" style="margin-left: 1em; margin-right: 1em;"><img alt="" data-original-height="4032" data-original-width="3024" height="431" src="https://blogger.googleusercontent.com/img/a/AVvXsEiM-UZnRtlG1WcxC6O-zUouk7x9tc0f_yC4ujkCY2I05bzSXH16tRpsBlqep6ow-LIk4fRb0lniNWmF6HHIAW5a-i27plxYuViBFaLMPK7DPdBaO_QpG4MtQ8ZrzXy48Upo-cmqxcaqtnDyRacmP5pVGVUytKG6Nt3vl4NFocUyPh2A36snfVvCMwQQVA=w324-h431" width="324" /><br /></a></span></span></div><div class="separator" style="clear: both; text-align: center;"><span style="font-family: inherit;"><span style="font-size: large;">拍日暈的第一步驟,找路燈</span></span></div><div class="separator" style="clear: both; text-align: center;"><span style="font-family: inherit;"><span style="font-size: large;"><span style="color: #0000ee;"><u><br /></u></span><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEjfRB6Hdf7gQ-634SoNwif3xwIj7my8VJQVmVfgPUTSK2EgWWOTAWKnah8D1yBC7S3X6rZK0au14KBG7X2XXSZ4H7YDxygSGBBYPYbDqKjc40ohZGecMEHLROOfRg-pa4kfTBHA14S1OyUoqRf73dZzKTqwbT8bBHAe9kM7wdV50o2havbN3AyNgQQ1mA" style="margin-left: 1em; margin-right: 1em;"><img alt="" data-original-height="4032" data-original-width="3024" height="432" src="https://blogger.googleusercontent.com/img/a/AVvXsEjfRB6Hdf7gQ-634SoNwif3xwIj7my8VJQVmVfgPUTSK2EgWWOTAWKnah8D1yBC7S3X6rZK0au14KBG7X2XXSZ4H7YDxygSGBBYPYbDqKjc40ohZGecMEHLROOfRg-pa4kfTBHA14S1OyUoqRf73dZzKTqwbT8bBHAe9kM7wdV50o2havbN3AyNgQQ1mA=w325-h432" width="325" /></a></div></span></span></div><p><span style="font-family: inherit;"><span style="font-size: large;"><span style="font-family: inherit;"><span style="font-size: large;">步驟二,把頭的影子和路燈影子重合</span></span></span></span></p><span style="font-family: inherit;"><span style="font-size: large;">然後把頭部的影子和路燈影子重合,這時太陽正好被路燈遮住。接著拿起手機或相機就可以拍日暈,而且不受強烈太陽光影響,對眼睛也比較安全。</span></span><p></p><div><span style="font-family: inherit;"><span style="font-size: large;"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/a/AVvXsEgsSqn4MtAaCmfiXbUZm3wcDSXc5hjSQyhHIXxuN7A8fLzPxZi7NUuCqkA3vuQUpqe3XiJ9uMj8hLiDxBcCfo7w8uJZwr9yT2tuuIJq8AbAKu_FJMMbpa5Hfu839az6gWtUJrvzXGEKJaiYaefdi-cnsgxjB2MZRsJWaq19i0gZcBNmUk7JfZ0MNk0FzA" style="margin-left: 1em; margin-right: 1em;"><img alt="" data-original-height="4032" data-original-width="3024" height="602" src="https://blogger.googleusercontent.com/img/a/AVvXsEgsSqn4MtAaCmfiXbUZm3wcDSXc5hjSQyhHIXxuN7A8fLzPxZi7NUuCqkA3vuQUpqe3XiJ9uMj8hLiDxBcCfo7w8uJZwr9yT2tuuIJq8AbAKu_FJMMbpa5Hfu839az6gWtUJrvzXGEKJaiYaefdi-cnsgxjB2MZRsJWaq19i0gZcBNmUk7JfZ0MNk0FzA=w452-h602" width="452" /></a></div>利用路燈把太陽遮住,可以拍出美麗的日暈。2022/8/6李昫岱攝於台東太麻里</span></span></div><div><span style="font-family: inherit;"><span style="font-size: large;"><br /></span></span></div><div><span style="font-family: inherit;"><span style="font-size: large;">當然,不一定要用路燈,路樹或花也是不錯的選擇。另外路燈或路樹都在馬路邊,拍攝時千萬要注意安全!</span></span></div>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com1tag:blogger.com,1999:blog-4244426533507326805.post-69529129185755307512022-08-01T14:11:00.001+08:002022-08-10T09:49:28.577+08:00阿美族的日月傳說<p><span style="font-family: inherit; font-size: large;"><span style="white-space: pre-wrap;">阿美族的神話中,天神馬拉道(Malataw)有一對龍鳳胎的兒女,男生叫普拉斯(Fulad),女生叫吉薩兒(Chidal)。這對兒女長大後,馬拉道指派重要的任務給祂們,要兒子普拉斯當太陽,照耀白天;女兒吉薩兒當月亮,守護黑夜。</span></span></p><span id="docs-internal-guid-d1f7a201-7fff-30d0-fb15-8c9883f62c57"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 405px; overflow: hidden; width: 602px;"><span style="font-family: inherit; font-size: large;"><img height="405" src="https://lh4.googleusercontent.com/U1A7i5XvGIirDIphAJ8Lx7ts6dT8WpXRLUjCVr-JRq43DBMqZDzX5B0vyCpBmOxYihaQNVUQXPrD7bzwyXVzaSINitJMExMax3fwGyIYZNXjdJHBjYmaOs8Db8Kd7UBRc39qAE8uAHcF7T6BJXZbkZw" style="margin-left: 0px; margin-top: 0px;" width="602" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">阿美族的太陽神是女性,月亮神是男性,這可能跟阿美族是母系社會有關</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">不過普拉斯貪玩懶惰,白天需要工作時不見人影,地面上缺乏日照,穀物歉收,人們生活困苦。反而是吉薩兒按時出現在夜空,從不遲到偷懶,夜空中安慰受苦的人。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">馬拉道對兒子相當失望,要女兒吉薩兒代替普拉斯成為太陽。吉薩兒成為太陽後,盡忠職守,每天東升西落,改善人們生活,人民心生感激。普拉斯看到吉薩兒受到人民喜愛,心生嫉妒,也想求表現,結果白天同時出現兩個太陽。兩顆太陽讓大地一片炙熱,生活無以為繼,阿美族人派勇士阿蛇克(Adek)去除掉一顆太陽。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">普拉斯睡到中午才慢慢升起,阿蛇克先用七彩釣竿困住普拉斯,再用弓箭射向祂。普拉斯身受重傷,光芒銳減,阿蛇克的七彩釣竿則留在天上變成彩虹。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">吉薩兒成為名正言順的太陽女神,普拉斯只能當月亮,據說這是阿美族母系社會的由來。</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-52892057244994961172022-07-30T15:46:00.005+08:002022-08-01T11:55:35.578+08:00 2022年8月星空預報<p><span style="white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">過了7月的大暑後,最熱的時節己經過,太陽西下後,入夜的天空正綻放著美麗。</span></span></p><span id="docs-internal-guid-34450cdd-7fff-9a54-186f-e1e8e22aac3a"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 719px; overflow: hidden; width: 571px;"><span style="font-family: inherit; font-size: large;"><img height="719" src="https://lh3.googleusercontent.com/6I0vFcMgNYh0mw4PC84GrEU77_uZ2btD6VACuW35bp99DLQHAwKuKvq0pN1o9M5UpvF12AqUG4g-1R_a9dA6ncvHKRszMW93mdSBreldlRpfMq-flyW8I9Rma_BQtNl8FFhVq1lp2TfXBFKmkjAm_IU" style="margin-left: 0px; margin-top: 0px;" width="571" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">2021年9月9日水星合月,這個月的29日也有機會在日落後的西方看到,李昫岱攝於安平</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: x-large;"><span style="color: #990000;">8月13日(農曆十六),</span><a href="https://calendar.google.com/calendar/u/0/r/eventedit/NzNldHNhYm5zcmltbWo2Mm5jNDhzMW9idnQgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc&pli=1"><span style="color: #2b00fe;">英仙座流星雨</span></a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-size: large;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit;">今年英仙座流星的雨極大期發生在台灣時間8月13日早上9點,最佳觀賞時間是8月13日的清晨。<a href="https://roofastro.blogspot.com/2018/08/blog-post.html">英仙座流星雨要怎麼看呢?</a></span></span><span style="font-family: inherit; white-space: pre-wrap;">找個光害低、開闊的地方就可以看流星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">不過這次英仙座流星雨發生在農曆十六,明亮的月光會降低觀看到的流星數。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: x-large;"><span style="color: #990000;">8月15日(農曆十八),</span><a href="https://calendar.google.com/calendar/u/0/r/eventedit/NHFtZmhzMjA1cDJwaTFrMzMzN3NwbHYxNnUgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc&pli=1"><span style="color: #2b00fe;">土星衝</span></a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">土星衝是指太陽、地球和土星排成一線的現象,每年都會出現一次。這段時間土星會出現在日落後的東方,幾乎是土星離地球最近、也是最亮的時刻,是每年觀賞土星的最佳時機。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: x-large;"><span style="color: #990000;">8月28日(農曆初二),</span><a href="https://calendar.google.com/calendar/u/0/r/eventedit/NHNjNDhpc2hyYzhnbDMyOGFvMGQ4aGFncGggbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc&pli=1"><span style="color: #2b00fe;">水星東大距</span></a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">水星東大距是觀看水星最佳的時刻,日落後西方地平線上,可以看見難得一見的水星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: x-large;"><span style="color: #990000;">8月29日(農曆初三),</span><a href="https://calendar.google.com/calendar/u/0/r/eventedit/MGwwanY2YW02ZjBwaDdtazU4aWk0NXZybjcgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc&pli=1"><span style="color: #2b00fe;">水星合月</span></a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">月亮每個月都會靠近水星一次,稱為水星合月,不過水星本身太靠近太陽,所以水星合月並不容易看見。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">這次水星合月出現在水星東大距後一天,相當適合觀看,水星位在眉月南方大約6度的地方。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快!</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-54609367778595651342022-07-10T21:19:00.001+08:002022-07-10T21:19:44.264+08:00<p><span style="font-family: inherit; font-size: large;"> 2022/7/10綠閃光</span></p><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiL_-6mE5pIg2yw4ue6PROqs0jpqGdb-B059wnymt6KRhIbvUfGWmzZYSc9FqnVro6-vRJ05q28b-j31c-QmmES8b023ICt3dF6T8W2bN8gyLwzVzRtlTdW9IAvK-oPxAOx9KJKgLlwookhR6QDMBOvicOoFTcc2bsF1sgiA3PN31gZ7LlMrhPh1C6muA/s7360/DSC_7265.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4912" data-original-width="7360" height="472" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiL_-6mE5pIg2yw4ue6PROqs0jpqGdb-B059wnymt6KRhIbvUfGWmzZYSc9FqnVro6-vRJ05q28b-j31c-QmmES8b023ICt3dF6T8W2bN8gyLwzVzRtlTdW9IAvK-oPxAOx9KJKgLlwookhR6QDMBOvicOoFTcc2bsF1sgiA3PN31gZ7LlMrhPh1C6muA/w703-h472/DSC_7265.JPG" width="703" /></a></div><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: center;"><br /></div><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpSf1wKWVpk_IG2KUUZ_EB-Ktfet3P42JKANT7Oa5LcuVb8J3xnLhlb_fUlRxqXQKQ75MJdCLRh3StVMxAnHpjStjZvybOEdnxFYkFNxCsxx058HGp7r6km1rrJnoqcasQdR1i1myaqK3UPk7UFoxvy9njmO1tqfWmSRZakrrl04s5mqAsq3XUBhvaTQ/s7360/DSC_7266.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" data-original-height="4912" data-original-width="7360" height="455" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhpSf1wKWVpk_IG2KUUZ_EB-Ktfet3P42JKANT7Oa5LcuVb8J3xnLhlb_fUlRxqXQKQ75MJdCLRh3StVMxAnHpjStjZvybOEdnxFYkFNxCsxx058HGp7r6km1rrJnoqcasQdR1i1myaqK3UPk7UFoxvy9njmO1tqfWmSRZakrrl04s5mqAsq3XUBhvaTQ/w681-h455/DSC_7266.JPG" width="681" /></a></div><br /><div class="separator" style="clear: both; text-align: center;"><br /></div>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0tag:blogger.com,1999:blog-4244426533507326805.post-35391570455291100432022-06-30T17:50:00.002+08:002022-06-30T17:52:05.359+08:002022年7月星空預報<p><span style="font-family: inherit; font-size: large;"> <span style="white-space: pre-wrap;">六月的行星同現已經結束,七月天文迷可以喘口氣、睡飽些。</span></span></p><span id="docs-internal-guid-cfe4f565-7fff-28b5-b23d-f88b439b44b6"><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">不過天空不是只有那些可以預測的天象,天空迷人之處也在於多變和不可預期!七月白天是日暈和幻日等常出現的季節,抬頭仰望讓你發現生活中的驚奇!</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 496px; overflow: hidden; width: 530px;"><span style="font-family: inherit; font-size: large;"><img height="496" src="https://lh5.googleusercontent.com/xcjlgdoh4t1weFHmbyKXy8lYmN2lNl7PAWsOGMCVpPNFhS1kFd9PuIInC3EjUUNUpC-mlqtkDpzrdqTOhu4tdmX7utEJL-eQ1wg2mdzmXC1TC66NOUT0Tuu7XipTiKlpMN5K-j1zPyQ1V3QutGg" style="margin-left: 0px; margin-top: 0px;" width="530" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">2022/6/16早晨的日暈。李昫岱攝於台南安平</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">7月1日(農曆初三),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/NjA5NDlsa2xqa29wcXN0ZXFqczFlZjRrYXAgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">畢宿五合金星</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">6月23日才出現畢宿五合水星,7月1日又可以看到畢宿五合金星。畢宿五位在金牛座,相當靠近黃道,有時會有行星路過。這次畢宿五合金星,兩者相距約4度。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">7月14日(農曆十六),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/N2NtdmRra2liMzNpanIwNHEzMjc5bjZlNXAgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">最大滿月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">今年最大滿月出現在7月14日清晨2:38,最大滿月的視直徑是0.56度,只比一般的滿月大一點點,眼睛感受不到這一點差異。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">7月22日(農曆廿四),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/N2cyNDI2bm5xdGZndjVsYTNsZm0yaW8waW0gbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">火星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">清晨時可以看見火星合月,火星與月亮相距約3度。比較特別的是7月21日,日本可以看見月掩火星。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="border: none; display: inline-block; height: 527px; overflow: hidden; width: 480px;"><span style="font-family: inherit; font-size: large;"><img height="527" src="https://lh4.googleusercontent.com/MZt4W-AdGAJCgWxawQOws06z7y1JNmwylJCDF-ViklpD2cpRo5z9bGeFznPFWJ-VlJueoH2Cw7Pb-WaDT6GeZeqr6DE456XR67P06R5ahrxbGRiNUTjrN4cQ9n1j7KWMh99sMlT2JMez280iBw" style="margin-left: 0px; margin-top: 0px;" width="480" /></span></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt; text-align: center;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">火星合月,2021年12月3日李昫岱攝於台南漁光島</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="color: #990000; font-family: inherit; font-size: x-large;">7月26日(農曆廿八),<a href="https://calendar.google.com/calendar/u/0/r/eventedit/N3ExdW04NzlhNzRkazg0cjM0bzFiMmcwc2IgbTkxcGFpNjg5NXY4a3JldHY4amtyZGJxazBAZw?tab=rc">金星合月</a></span></span></p><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">金星合月很美也很容易拍,兩個天體都很亮,不用擔心城市的光害,用手機也能拍出迷人的照片!這次的金星合月,金星與殘月相距約8度,曙光中可以看見它們美麗的身影。</span></span></p><span style="font-family: inherit; font-size: large;"><br /></span><p dir="ltr" style="line-height: 1.38; margin-bottom: 0pt; margin-top: 0pt;"><span style="font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><span style="font-family: inherit; font-size: large;">祝 觀星愉快!</span></span></p><div><span style="font-family: BiauKai; font-size: 11pt; font-variant-east-asian: normal; font-variant-numeric: normal; vertical-align: baseline; white-space: pre-wrap;"><br /></span></div></span>屋頂上的天文學家http://www.blogger.com/profile/10481976789996969734noreply@blogger.com0