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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 Gamma Delphini ： ウィキペディア英語版 Gamma Delphini Gamma Delphini (γ Del, γ Delphini) is a binary star system approximately 101 light-years away in the constellation of Delphinus. The star marks one corner of the asterism "Job's Coffin". It is one of the best known double stars in the sky, with the primary star being a yellow-white dwarf star, while the secondary star is an orange subgiant star. == Stellar components == The primary star (catalogued as Gamma1 Delphini) is a yellow-white dwarf star of spectral type "F7V" and an apparent magnitude of 5.14. The star is thought to have about 7 times more luminosity than the Sun. The secondary star (Gamma2 Delphini) is an orange subgiant star of spectral type "K1IV" and an apparent magnitude of 4.27. This star is thought to have about 20.6 times more luminosity than the Sun. Nevertheless the cooler component (Gamma2) is more massive than Gamma1 and according to the hierarchy of masses and brightness, Gamma2 should be the primary star of the system. 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「Gamma Delphini」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.