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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 Theta Andromedae ： ウィキペディア英語版 Theta Andromedae Theta Andromedae (θ And, θ Andromedae) is the Bayer designation for a binary star in the constellation Andromeda. It is approximately from Earth,〔 with a visual magnitude of 4.6.〔 On the Bortle Dark-Sky Scale, this makes it visible to the naked eye from outside urban regions. Theta Andromedae is a white A-type main sequence dwarf with an apparent magnitude of +4.61. It appears to be a binary star with a massive, possibly A-type secondary orbiting at a distance of around 1 astronomical unit.〔 A fainter companion is separated from Theta Andromedae by 0.06 arcseconds.〔 ==Naming== In Chinese, (), meaning ''Celestial Stable'', refers to an asterism consisting of θ Andromedae, ρ Andromedae and σ Andromedae. Consequently, θ Andromedae itself is known as (, (英語:the First Star of Celestial Stable).)〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 18 日 )〕 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「Theta Andromedae」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.