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2008 BT18
2008 BT18 is an asteroid discovered on 31 January 2008 by the LINEAR program at the Lincoln Laboratory at the Massachusetts Institute of Technology, which research identifies Near-Earth asteroids. On 14 July 2008, the asteroid transited within 0.0151 AU of Earth, or 5.9 lunar distances. On 6 and 7 July 2008, research conducted using the Arecibo Observatory produced evidence that this is a binary asteroid. The secondary component has a diameter of at least 200m, or about 33% the size of the primary. == 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「2008 BT18」の詳細全文を読む
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