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Mu Aquarii
Mu Aquarii (μ Aqr, μ Aquarii) is the Bayer designation for a binary star〔 in the equatorial constellation of Aquarius. It is visible to the naked eye with an apparent magnitude of 4.7.〔 Based upon parallax measurements, the distance to this system is about .〔 Mu Aquarii is a spectroscopic binary system with an orbital period of 1,566 days and an eccentricity of 0.23.〔 The combined spectrum matches a stellar classification of A3m, with the 'm' suffix indicating that this is an Am, or chemically peculiar star.〔 This star system shares the traditional name Albulaan with ν Aquarii. The name derives from an Arabic term ''al-bulacān'' (ألبولعان) meaning "the two swallowers". This star, along with ε Aqr (Albali) and ν Aqr (Albulaan), were al Bulaʽ (البلع), the Swallower.〔〔〔 In Chinese, (), meaning ''Girl (asterism)'' (or ''Woman''), refers to an asterism consisting of μ Aquarii, ε Aquarii, 4 Aquarii, 5 Aquarii and 3 Aquarii.〔 ''中國星座神話'', written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7.〕 Consequently, μ Aquarii itself is known as (, (英語:the Second Star of Girl / Woman).)〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 14 日 )〕 ==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「Mu Aquarii」の詳細全文を読む
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