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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 Alpha Leporis ： ウィキペディア英語版 Alpha Leporis Alpha Leporis (α Lep, α Leporis) is the brightest star in the constellation Lepus. It has the traditional name Arneb, from the Arabic أرنب ''’arnab'' "hare".〔 This is a massive star with about 14 times the mass of the Sun.〔 The interferometer-measured angular diameter of this star, after correction for limb darkening, is .〔 At an estimated distance of ,〔 this yields a physical size of about 129 times the radius of the Sun.〔 Alpha Leporis has a stellar classification of F0 Ib,〔 with the Ib luminosity class indicating that it is a lower luminosity supergiant star. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.〔 The effective temperature of the outer envelope is about 6,850 K,〔 which gives the star a yellow-white hue that is typical of F-type stars. It is an estimated 13 million years old.〔 Alpha Leporis is an older, dying star that may have already passed through a supergiant phase and is now contracting and heating up in the latter phases of stellar evolution, or perhaps is still expanding into the supergiant phase. Based upon its estimated mass, it is expected to end its life in a spectacular stellar explosion known as a supernova.〔 ==Arneb in Military== USS Arneb (AKA-56) was a ship of the United States navy. 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「Alpha Leporis」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.