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NGC 6871 is a small, young open cluster in the constellation of Cygnus. The cluster has less than 50 members, most of which are blue and white stars. It is located 5135 light-years from Earth. ==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「NGC 6871」の詳細全文を読む スポンサード リンク
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