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2015 SO2
(also written 2015 SO2) is an Aten asteroid that is a temporary horseshoe companion to the Earth, the ninth known Earth horseshoe librator. Prior to its most recent close encounter with our planet (2015 September 30) it was an Apollo asteroid. ==Discovery== was discovered on 2015 September 21 by B. Mikuž observing with the 0.6-m f/3.3 Cichocki telescope at the Črni Vrh Observatory in Slovenia.〔(Discovery MPEC )〕〔(News release )〕 As of 30 November 2015, it has been observed 84 times with an observation arc of 9 days.〔
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「2015 SO2」の詳細全文を読む
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