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2013 XY8 2013 XY8 is a near-Earth asteroid that passed from Earth on December 11, 2013.〔〔 Slate magazine noted how although it missed by about 2 lunar distances, it was discovered just 5 days previous, on December 7, 2013.〔 At 30–70 meters across it is bigger than the Chelyabinsk meteor.〔 2013 XY8 has been observed by radar and has a well determined orbit.〔 It will pass about from the Moon on 11 December 2095.〔 ==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「2013 XY8」の詳細全文を読む
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