Copyright:Justin Tilbrook
原文:
Sporting a surprisingly bright, lovely green coma Comet 252P/Linear poses next to the Large Magellanic Cloud in this southern skyscape. The stack of telephoto exposures was captured on March 16 from Penwortham, South Australia. Recognized as a Jupiter family periodic comet, 252P/Linear will come close to our fair planet on March 21, passing a mere 5.3 million kilometers away. That’s about 14 times the Earth-Moon distance. In fact, it is one of two comets that will make remarkably close approaches in the next few days as a much fainter Comet Pan-STARRS (P/2016 BA14) comes within 3.5 million kilometers (9 times the Earth-Moon distance) on March 22. The two have extremely similar orbits, suggesting they may have originally been part of the same comet. Sweeping quickly across the sky because of their proximity to Earth, both comets will soon move into northern skies.
中文翻譯:
在這個南天星空中，亮麗的綠色彗星252P/Linear與大麥哲倫雲（Large Magellanic Cloud）相映成趣。這組長焦距曝光作品於3月16日在南澳大利亞的Penwortham捕捉。252P/Linear被認為是一顆木星家族的週期彗星，將於3月21日與我們的地球有一次近距離接觸，距離僅為530萬公里，相當於地球與月球距離的約14倍。事實上，在接下來的幾天內，它還有一顆較暗的彗星Pan-STARRS（P/2016 BA14）將於3月22日接近地球，距離為350萬公里（約地球與月球距離的9倍）。這兩顆彗星的軌道極為相似，顯示它們可能最初是同一顆彗星的一部分。由於它們與地球的接近，兩顆彗星在天空中迅速移動，將很快進入北半球的天空。
#彗星252PLinear #大麥哲倫雲 #南天星空 #天文觀賞 #宇宙奇觀 #天文愛好者 #Comet252P #彗星接觸 #夜空攝影
來源:NASA每日圖片
