翻訳と辞書 |
97 Aquarii
97 Aquarii is the Flamsteed designation for a binary star system in the equatorial constellation of Aquarius. The combined apparent visual magnitude of the system is 5.20;〔 the brighter star is magnitude 5.59 while the companion is magnitude 6.72.〔 Based upon an annual parallax shift of 15.30 milliarcseconds,〔 this system is at a distance of around from Earth. The two stars in this system orbit each other over a period of 64.62 years at an eccentricity of 0.14.〔 Both are A-type main sequence stars; the primary has a stellar classification of A2 V while its companion is A7 V.〔 Their composite spectrum shows the properties of a Lambda Boötis star, which means it displays peculiar abundances of certain elements.〔 ==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「97 Aquarii」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.
|
|