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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 Delta Piscium ： ウィキペディア英語版 Delta Piscium Delta Piscium (Delta Psc, δ Piscium, δ Psc) is a binary star in the constellation Pisces, with an apparent magnitude of +4.43. The primary component is an orange K-type giant. It is approximately 305 light years from Earth. The temperature seems well-defined at 3975 Kelvin, which (to account for a lot of infrared radiation) with distance tells of a luminosity 380 times that of the Sun.〔(DELTA PSC (Delta Piscium) )〕 Delta Piscium is moving through the Galaxy at a speed of 54.2 km/s relative to the Sun. Its projected Galactic orbit carries it between 21,700 and 26,100 light years from the center of the Galaxy.〔(Delta Piscium (HIP 3786) )〕 Delta Piscium came closest to the Sun 1.0 million years ago when it had brightened to magnitude 3.96 from a distance of 249 light years.〔 ==Naming== In Chinese, (), meaning ''Outer Fence'', refers to an asterism consisting of refers to an asterism consisting of δ Piscium, ε Piscium, ζ Piscium, μ Piscium, ν Piscium, ξ Piscium and α Piscium. Consequently, δ Piscium itself is known as (, (英語:the First Star of Outer Fence).)〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 19 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「Delta Piscium」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.