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2003 QX113
, also written as 2003 QX113, is a detached object〔 that was discovered when it was near aphelion. With an absolute magnitude of 4.7,〔 it may be a dwarf planet.〔 Currently at 59.7 AU from the Sun,〔 it will have moved beyond 60 AU by 2017. It will come to aphelion around 2058.〔 It last came to perihelion around 1883.〔 Its current distance makes it one of the most distant known minor planets in the Solar System after Eris (96.4 AU), (87 AU), Sedna (86 AU), (83 AU), (82 AU), (80 AU), and (70 AU).〔 == Size estimate ==
When was first discovered, it was estimated to have an absolute magnitude (H) of 4.9,〔 giving it an assumed size of only in diameter.〔 As of 2010, is estimated to have a brighter absolute magnitude (H) of 4.7.〔 Assuming it is a trans-Neptunian object with a generic albedo of 0.09, it is about in diameter.〔 It has been observed 23 times over six oppositions and has an orbit quality of 4.〔
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「2003 QX113」の詳細全文を読む
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