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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 Lyncis ： ウィキペディア英語版 Alpha Lyncis Alpha Lyncis (α Lyn, α Lyncis) is the brightest star in the northern constellation of Lynx with an apparent magnitude of +3.13.〔 Unusually, it is the only star in the constellation that has a Bayer designation.〔 Based upon parallax measurements, this star is located about from the Earth.〔 This is a giant star that has exhausted the hydrogen at its core and has evolved away from the main sequence. It has expanded to about 55 times the Sun's radius and it is emitting roughly 673 times the luminosity of the Sun.〔 The estimated effective temperature of the star's outer envelope is 3,882 K,〔 which is lower than the Sun's effective temperature of 5,778 K, and is giving Alpha Lyncis an orange hue that is characteristic of K-type stars.〔 Alpha Lyncis is a suspected small-amplitude red variable star〔 that changes apparent magnitude from +3.17 up to +3.12.〔 This variability pattern typically occurs in stars that have developed an inert carbon core surrounded by a helium-fusing shell, and suggests that Alpha Lyncis is starting to evolve into a Mira-type variable.〔 == 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「Alpha Lyncis」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.