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Collisional family : ウィキペディア英語版 | Collisional family In astronomy, a collisional family is a group of objects that are thought to have a common origin in an impact (collision). They have similar compositions, and most share similar orbital elements. Known or suspected collisional families include numerous asteroid families, most of the irregular moons of the outer planets, the Earth and the Moon, and the dwarf planets Pluto, Eris, and Haumea and their moons. ==References==
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「Collisional family」の詳細全文を読む
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