圣迈克尔山上空的银河
2020年9月7日
The Milky Way over St Michael’s Mount
Image Credit: Simon R. Hudson
Explanation: Where do land and sky converge? On every horizon — but in this case the path on the ground leads to St Michael’s Mount (Cornish: Karrek Loos yn Koos), a small historic island in Cornwall, England. The Mount is usually surrounded by shallow water, but at low tide is spanned by a human-constructed causeway. The path on the sky, actually the central band of our Milky Way Galaxy, also appears to lead to St Michael’s Mount, but really lies far in the distance. The red nebula in the Milky Way, just above the castle, is the Lagoon Nebula, while bright Jupiter shines to the left, and a luminous meteor flashes to the right. The foreground and background images of this featured composite were taken on the same July night and from the same location. Although meteors are fleeting and the Milky Way disk shifts in the night as the Earth turns, Jupiter will remain prominent in the sunset sky into December.
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圣迈克尔山上空的银河
影像提供: Simon R. Hudson
说明: 天与地会在何处交会呢？在地平线。不过在此例里，答案是圣迈克尔山（康沃尔语称之为Karrek Loos yn Koos），一座英格兰．康瓦尔郡饶有历史的小岛。这座山通常周围环绕着浅浅的海水，不过在退潮时，有人造的地面步道可通。而看似横亘在天空向圣迈克尔山伸展的”步道”，其实是远后方的银河系中央盘面。在城堡上方的泛红星云，是礁湖星云，木星在其左大放光芒，而右方则有闪掠而过的明亮流星。组成这幅主题影像的前景和背景照片，是在今年7月的同个夜晚摄于相同地点。虽然流星转瞬即逝，银河随着地球自转而在夜空流淌，但是直到12月，木星会一直是日落后天空很吸睛的天体。
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