Copyright:Bob Franke
原文:
Comet C/2014 S2 (PanSTARRS) poses for a Messier moment in this telescopic snapshot from April 18. In fact it shares the 1.5 degree wide field-of-view with two well-known entries in the 18th century comet-hunting astronomer’s famous catalog. Outward bound and sweeping through northern skies just below the Big Dipper, the fading visitor to the inner Solar System was about 18 light-minutes from our fair planet. Dusty, edge-on spiral galaxy Messier 108 (upper right) is more like 45 million light-years away. A planetary nebula with an aging but intensely hot central star, the owlish Messier 97 is only about 12 thousand light-years distant though, still well within our own Milky Way galaxy. Astronomers expect the orbit of this comet PanSTARRS to return it to the inner Solar System around the year 4226.
中文翻譯:
🌌 彗星 C/2014 S2 (PanSTARRS) 在這張 4 月 18 日的望遠鏡快照中展示了它的美姿。實際上，它與兩個著名的 18 世紀彗星狩獵天文學家的目錄中的條目共享 1.5 度的廣角視野。這顆正在向外運行的彗星正在北半空中穿行，位於大熊星座下方，當時距離我們地球約 18 光分鐘。位於右上方的塵埃邊緣螺旋星系梅西耶 108（Messier 108）距離我們約 4500 萬光年。而擁有年邁但極為炙熱中央星的行星狹霧梅西耶 97（Messier 97），則距離約 12,000 光年，仍然在我們的銀河系內。天文學家預計這顆 PanSTARRS 彗星將於 4226 年再次回到內太陽系。
#彗星 #C2014S2 #PanSTARRS #梅西耶97 #梅西耶108 #天文學 #星空觀察 #銀河系 #科學探索
來源:NASA每日圖片
