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DN Geminorum or Nova Geminorum 1912 was a nova which lit up in 1912 in the constellation Gemini. It reached a brightness of 3.5 mag. Its brightness decreased in 36 days by 3 mag. Today its brightness is 14 mag. 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「DN Geminorum」の詳細全文を読む スポンサード リンク
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