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HD 180555 is a triple star in the equatorial constellation of Aquila. It consists of a binary star with an orbital period of 8.95 years and an eccentricity of 0.43. A third component lies at an angular separation of 8.32″.〔 ==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「HD 180555」の詳細全文を読む スポンサード リンク
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