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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク NR Canis Majoris ： ウィキペディア英語版 NR Canis Majoris NR Canis Majoris also known as HR 2853, HD 58954, and HIP 36186, is a Delta Scuti variable star with a spectral classification of F2V and varies between magnitude 5.67 and 5.70 over roughly 16 hours. It is located to the west of Sirius, and west of Gamma Canis Majoris. NR Canis Majoris is 85.88 pc from the Sun, according to Hipparcos, and has a mass of 1.5 solar masses. It is about 2 billion years younger than the Sun. NR Canis Majoris is notable as it will eventually become the brightest star in the sky 2.6 million years from now to 3 million years from now, one of 4 different stars in Canis Major to hold that title (Alpha Canis Majoris, Beta Canis Majoris, and Epsilon Canis Majoris), being the others that are known at present. During this period, NR Canis Majoris will be only 14 light years away and appear at -0.88 magnitude, about the same as Canopus today. ==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「NR Canis Majoris」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.