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T Persei is a red supergiant located in the Double Cluster in Perseus, around 2 degrees north of them. It is a semiregular variable star, whose brightness varies from magnitude 8.34 to 9.7 over a period of 2430 days. ==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「T Persei」の詳細全文を読む スポンサード リンク
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