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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 Rho Ophiuchi ： ウィキペディア英語版 Rho Ophiuchi Rho Ophiuchi (ρ Ophiuchi) is a multiple star system in the constellation Ophiuchus.〔 It consists of at least two blue subgiants, ρ Oph A and ρ Oph B, both of which are of class B.〔 ρ Oph AB is a visual binary, and the sky-projected distance between ρ Oph A and ρ Oph B is 3.1" (or 344 AU at the 111 pc distance of ρ Oph AB).〔 Two to three other blue subgiants, ρ Oph C and ρ Oph DE, are found to be related to the star system, with sky-projected distances to ρ Oph AB of ~ 17,000 and ~ 19,000 AU, respectively. ρ Oph C and ρ Oph D are also of class B. The apparent brightness of the star system has been dimmed by about 2 magnitudes, as a result of interstellar extinction, due to its location within the Ophiuchus cloud. The star system, ρ Oph AB, is located about 360 light years away.〔 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「Rho Ophiuchi」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.