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19521 Chaos
19521 Chaos is a cubewano, a Kuiper-belt object not in resonance with any planet. It is a likely dwarf planet. Chaos was discovered in 1998 by the Deep Ecliptic Survey with Kitt Peak's 4 m telescope. Its albedo is ,〔 making it, with its absolute magnitude (H) of 4.8,〔 in diameter.〔 It is named after the primeval state of existence in Greek mythology, from which the first gods appeared. == Orbit and rotation ==
19521 Chaos has an orbital period of approximately 309 years. Its orbit is not much more eccentric than the orbit of Pluto. 19521 Chaos's orbit is inclined approximately 12° to the ecliptic. Its orbit never crosses the orbit of Neptune.
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「19521 Chaos」の詳細全文を読む
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