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本帖最後由 Rottweiler 於 2013-12-6 15:13 編輯 ISON 45億年的存活!!留下我們永恆的光輝!! 
11月17日，攝於瑞典斯德哥爾摩。 
11月23日，希臘波塞冬海神廟 
11月23日，日本長野縣 
11月22日，日本富士山 資料來源: 大陸新聞中心／綜合報導 |
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本帖最後由 frintezza 於 2013-12-5 16:45 編輯 轉貼一下, 這段影片做得不錯, 紀錄了整個通過近日點的過程 建議看 http://apod.nasa.gov/apod/ap131130.html , 這跟youtube版本一樣但後面更詳細, 可以看到殘餘繼續變暗 ________________________________________________________________________________________ 12/5 補充 ISON接近太陽時原來是這樣散的~ 
http://www.planetary.org/blogs/emily-lakdawalla/2013/12021624-multiple-views-of-comet-ison.html |
| 參與人數 2 | 水氣能量 +20 | 收起 理由 |
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| + 5 | 很給力! |
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| + 15 | 很給力! |
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嘿嘿大逆轉，ISON仍有部分慧核存活！ 資料來源：http://www.nasa.gov/content/goddard/comet-ison-may-have-survived/#.UpnsFdJI9SK 有人幫忙做成14439KB大小的GIF動畫，方便觀看，但完全下載到你的電腦可能要花較長時間，請耐心等候。 這個彗星真的很折騰人，一驚一乍的。 
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彗星沒有死 幸運逃過一劫?? (下文轉述自NASA臉書動態) #Comet #ISON: Is it or isn't it? New data indicates it may have survived. Learn more: http://go.nasa.gov/IqwLl7 In this image, ISON appears as a white smear heading up and away from the sun. ISON was not visible during its closest approach to the sun, so many scientists thought it had disintegrated, but images like this one from the ESA/NASA Solar and Heliospheric Observatory suggest that a small nucleus may be intact. Image Credit: ESA/NASA/SOHO/GSFC  詳細內容:NASA 如果是真的話那太好了~~:loveliness: |
| 參與人數 3 | 水氣能量 +35 | 收起 理由 |
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| + 15 | 很給力! |
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| + 5 | 贊一個! |
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| + 15 | 很給力! |
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本帖最後由 wangsj1968 於 2013-11-29 04:56 編輯 被太陽蒸發了!!哈，這是我看過第二精彩的彗星！ 
新聞來源：http://www.bbc.co.uk/news/science-environment-25143861 Comet Ison 'destroyed in Sun pass 'By Jonathan AmosScience correspondent, BBC News Comet Ison seems to have been destroyed in its encounter with the Sun. Telescopes saw the giant ball of ice and dust disappear behind the star, but then fail to emerge as expected. Astronomers continue to search for the object, but it is almost certain the much vaunted "Comet of the Century" has gone out with a whimper. Despite its great size, Ison was probably torn apart in the immense heat and tidal forces so close to the Sun. Prof Tim O'Brien, associate director of Jodrell Bank, UK, said: "The nucleus has gone very faint, which you wouldn't expect. "We can't be sure - but it's not looking good. We'll have to keep watching." Ison had captivated skywatchers with its promise all year. A "fresh" object flung in towards the inner Solar System from its home far beyond the outer planet Neptune, it was hoped it might produce a brilliant tail that would arc across the night sky, perhaps for weeks. And, as it got closer and closer to the Sun, its ices did indeed begin to vaporise, releasing dust that shimmered in a distinctive trailing stream. But from early on, it was clear Ison was unlikely to be spectacular; it was just not brightening in the way people had hoped. This led scientists to fear for its survival when it eventually grazed past the star at a distance of just 1.2 million km at 18:35 GMT on Thursday. The European and and US space agencies' Sun-watching Soho satellite observed Ison approach, and sweep, behind the Sun, but then fail to come back around. Minutes after the comet should have reappeared, the Soho images showed nothing. Perhaps some debris, but nothing significant. Other telescopes such as Nasa's Solar Dynamics Observatory could detect no obvious sign, either. Passing close to the Sun, Ison would have been subjected to temperatures up to abut 2,000C. And the immense gravity of the star would also have pulled and squeezed on the object as it tumbled end of end. All the evidence suggests Ison's nucleus was simply torn apart. |
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