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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 Omicron Cephei ： ウィキペディア英語版 Omicron Cephei Omicron Cephei (Omicron Cep, ο Cephei, ο Cep) is a binary star in the constellation of Cepheus.〔 It consists of a less massive K-type main sequence star in orbit with a more massive G-type giant star.〔 The overall apparent visual magnitude of the system is 4.75.〔 The pair was first determined to be binary by F. G. W. Struve in 1832. Since then, the secondary has been seen to revolve approximately 45 degrees around the primary. A number of orbits have been computed, the most recent giving a period of approximately 1500 years.〔 ==Visual companion== There is a visual companion, ''CCDM J23186+6807C'', to the binary star. It has an approximate apparent visual magnitude of 12.8 and is located approximately 45 arcseconds away from it.〔〔 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「Omicron Cephei」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.