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每个人或许只有一个故乡，家却可以无处不在。亲人在的地方是家，心安定的地方也是家。。。。。。
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拜访一下我们的邻居，仙女座星云

(2021-08-05 14:15:01) 下一个

Andromeda Galaxy - Andromeda (or M31 in the Messier catalogue), is our neighbor galaxy. The galaxy is approximately 2.5 million light years away from us. Andromeda is bigger than our own galaxy, the Milky Way (150.000 - 200.000 light years in diameter, the milky way is approximately 100.000 - 120.000 light years in diameter). Andromeda contains 1.000 billion stars (300 billion stars are contained in the milky way). http://www.canzler.photography

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