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2010 EK139
〔 is a trans-Neptunian object orbiting the Sun in the scattered disc. It was discovered in 2010 by astronomers from the OGLE team led by Andrzej Udalski from Warsaw University.〔 With an absolute magnitude (H) of 3.8,〔 it is very likely a dwarf planet.〔 == Distance ==
It will come to perihelion around 2038〔 and is currently 39.1 AU from the Sun.〔 It has been observed 122 times over five oppositions and has an orbit quality of 2.〔 There are precovery images dating back to 2002.〔 A ten-million-year integration of the orbit shows that this object is in a 2:7 resonance with 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「2010 EK139」の詳細全文を読む
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