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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Andromeda–Milky Way collision ： ウィキペディア英語版 Andromeda–Milky Way collision The Andromeda–Milky Way collision is a galactic collision predicted to occur in about 4 billion years between the two largest galaxies in the Local Group—the Milky Way (which contains the Solar System and Earth) and the Andromeda Galaxy〔Loeb, Abraham; Cox, TJ. (June 2008). Astronomy. p. 28.〕 although the stars involved are sufficiently far apart that it is improbable that any of them will individually collide. The galaxy that will be the result of the collision is nicknamed ''Milkomeda''. == Stellar collisions == While the Andromeda Galaxy contains about 1 trillion () stars and the Milky Way contains about 300 billion (3), the chance of even two stars colliding is negligible because of the huge distances between the stars. For example, the nearest star to the Sun is Proxima Centauri, about or 30 million (3) solar diameters away. If the Sun were a ping-pong ball, Proxima Centauri would be a pea about away, and the Milky Way would be about 30 million km ( million mi) wide. Although stars are more common near the centres of each galaxy, the average distance between stars is still 160 billion (1.6) km (100 billion mi). That is analogous to one ping-pong ball every . Thus, it is extremely unlikely that any two stars from the merging galaxies would collide.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Andromeda–Milky Way collision」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.