翻訳と辞書
Words near each other
・ Sigma-2 receptor
・ Sigma-Aldrich
・ Sigma-algebra
・ Sigma-class corvette
・ Sigma-ideal
・ Sigma-martingale
・ Sigma-pi and equivalent-orbital models
・ Sigma-ring
・ Sigma-t
・ Sigma-Tau
・ Sigma1 Cancri
・ Sigma1 Gruis
・ Sigma1 Ursae Majoris
・ Sigma2 Cancri
・ Sigma2 Gruis
Sigma2 Ursae Majoris
・ Sigma3
・ Sigma3 Cancri
・ Sigmala
・ Sigman
・ Sigman, West Virginia
・ SigmaNet
・ SigmaPlot
・ Sigmaquad
・ Sigmar
・ Sigmar (disambiguation)
・ Sigmar (given name)
・ Sigmar Berg
・ Sigmar Gabriel
・ Sigmar Polke


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Sigma2 Ursae Majoris : ウィキペディア英語版
Sigma2 Ursae Majoris


Sigma2 Ursae Majoris (Sigma2 UMa, σ2 Ursae Majoris, σ2 UMa) is a binary star approximately 66.7 light years from Earth. The primary component, is a yellow-white F-type subgiant with an apparent magnitude of +4.85. The companion is an orange K-type main sequence dwarf with an apparent magnitude of +8.16. The two stars have a semi-major axis on the sky of 6 arcseconds and have an orbital period of 1067 years. There is a third component, Sigma² Ursae Majoris C, 205 arcseconds from the primary which is thought to be a line-of-sight co-incidence.
==Naming==
In Chinese, (), meaning ''Three Top Instructors'', refers to an asterism consisting of σ2 Ursae Majoris and ρ Ursae Majoris. Consequently, σ2 Ursae Majoris itself is known as (, (英語:the Third Star of Three Top Instructors).).〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 6 月 16 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「Sigma2 Ursae Majoris」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.