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4547 Massachusetts : ウィキペディア英語版 | 4547 Massachusetts
4547 Massachusetts (1990 KP) is a main-belt asteroid discovered on May 16, 1990 by Kazuro Watanabe and Kin Endate at Sapporo. Photometric observations of the asteroid during 2006 at the Palmer Divide Observatory in Colorado Springs, Colorado, were used to generate a light curve with a period of 7.703 ± 0.005 hours and a variation in brightness of 0.29 ± 0.02 magnitude.〔 ==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「4547 Massachusetts」の詳細全文を読む
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