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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 Antliae ： ウィキペディア英語版 Theta Antliae Theta Antliae (θ Ant, θ Antliae) is the Bayer designation for a binary star in the southern constellation of Antlia. The pair have a combined apparent visual magnitude of +4.78;〔 the brighter component is magnitude +5.30 while the secondary is +6.18.〔 Based upon parallax measurements, it is located at a distance of around from Earth. The primary component of this system, θ Ant A, has a stellar classification of A8 Vm,〔 indicating that it is an A-type main sequence star with enhanced metallic lines in its spectrum. The companion, θ Ant B, is a giant star with a classification of G7 III.〔 The pair have an orbital period of 18.3 years, a significant eccentricity of 0.445, and they have an angular separation of 0.1 arcseconds.〔 ==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「Theta Antliae」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.