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原文:
Most comets don’t survive a close encounter with the Sun. Two years ago this month, though, Comet ISON was thought by some to be big enough to withstand its perilous sungrazing dive. The featured video shows the drama as it was recorded by the Solar and Heliospheric Observatory (SOHO), a joint mission of ESA and NASA. As many Earthlings watched in fascination, a bright area did emerge from closest approach, but it soon faded and dispersed. It is now assumed that no large fragments of Comet C/2012 S1 (ISON) survived. Besides the comet, the active Sun is seen to eject puffs of plasma known as coronal mass ejections. Launched in 1995, sun-orbiting SOHO has become a historic device in the discovery and tracking of comets known as sungrazers. Two months ago, a comet designated SOHO 3000 was named in honor of the record 3000th comet that was discovered on SOHO images, a total that amounts to about half of all known comets. Astrophysicists: Browse 1,100+ codes in the Astrophysics Source Code Library
中文翻譯:
🌌 兩年前的這個月，彗星 ISON 讓許多人屏息以待，因為當時一些天文學家相信它足夠龐大，能夠抵禦與太陽的近距離接觸。然而，在最接近太陽的瞬間，一個明亮的區域似乎出現了，但隨後又迅速消失和擴散。現在大家普遍認為，彗星 C/2012 S1 (ISON) 未留下大的碎片。
🌞 除了彗星，活躍的太陽還不斷噴發等離子體雲，也就是稱為日冕物質拋射。自1995年以來，環繞太陽運行的太陽和日冕觀測衛星（SOHO）成為了發現和追蹤即將接近太陽的彗星的重要工具，至今已經發現了3000顆彗星，其中約一半的已知彗星都是由SOHO發現的。
🔭 兩個月前，一顆名為 SOHO 3000 的彗星在紀念SOHO發現的3000顆彗星後被命名。這是太空探索的一個令人興奮的里程碑！
#彗星ISON #太陽 #SOHO #日冕物質拋射 #太空探索 #天文學 #太陽系 #SOHO3000 #科學探索 #宇宙奧秘
來源:NASA每日圖片
