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5905 Johnson () is an inner main-belt binary asteroid discovered on February 11, 1989 by E. F. Helin at Palomar. A moon was discovered in 2005 with an orbital period of 21 hours, 47 minutes, and 5 seconds.〔 == 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「5905 Johnson」の詳細全文を読む スポンサード リンク
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