阿尔卑斯山上空的仙女座星系

2023年11月13日

Andromeda over the Alps
Image Credit & Copyright: Dzmitry Kananovich

Explanation: Have you ever seen the Andromeda galaxy? Although M31 appears as a faint and fuzzy blob to the unaided eye, the light you see will be over two million years old, making it likely the oldest light you ever will see directly. The featured image captured Andromeda just before it set behind the Swiss Alps early last year. As cool as it may be to see this neighboring galaxy to our Milky Way with your own eyes, long duration camera exposures can pick up many faint and breathtaking details. The image is composite of foreground and background images taken consecutively with the same camera and from the same location. Recent data indicate that our Milky Way Galaxy will collide and coalesce with Andromeda galaxy in a few billion years.

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Tomorrow’s picture: planets rock

阿尔卑斯山上空的仙女座星系
影像提供与版权: Dzmitry Kananovich

说明: 你看过仙女座星系吗？虽然在肉眼里，M31只是一团暗淡的弥漫光斑，但你所见的光超过2百万年老，因此它可能是你直接可见的最古老星光。这张主题影像，捕捉到去年初悬在瑞士阿尔卑斯山上空、即将西落的仙女座星系。纵然能以肉眼观赏银河系的邻居星系是很酷的事，但长曝光的相机照片，更能记录诸多暗淡而动人的细节。这幅影像是由同一部相机连续拍摄的多张前景与背景照片组合而成。近来的数据指出，我们的银河系在未来的数十亿年之中，将和较大的仙女座星系互撞及合并。