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・ Zetela tangaroa
・ Zetela textilis
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Zeta Aquarii
・ Zeta Aquilae
・ Zeta Arae
・ Zeta argillaceum
・ Zeta Arietis
・ Zeta Aurigae
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Zeta Aquarii : ウィキペディア英語版
Zeta Aquarii


Zeta Aquarii (ζ Aquarii, ζ Aqr) is the Bayer designation for a binary, or possibly a triple star system;〔 the central star of the "water jar" asterism〔 in the equatorial constellation of Aquarius. The combined apparent visual magnitude of this system is 3.65,〔 which is readily visible to the naked eye. Parallax measurements yield a distance estimate of around from Earth.〔
==Etymology==
Zeta Aquarii has the traditional name Sadaltager (or Altager), from the Arabic سعد التاجر ''sa‘d al-tājir'' "luck of the merchant". In the catalogue of stars in the ''Calendarium of Al Achsasi Al Mouakket'', this star was designated Achr al Achbiya (أجر ألأجبية - ''akhir al ahbiyah''), which was translated into Latin as Postrema Tabernaculorum, meaning ''the end of luck of the homes (tents)''.〔 This star, along with γ Aqr (Sadachbia), π Aqr (Seat) and η Aqr (Hydria), were al Aḣbiyah (الأخبية), the Tent.〔〔〔
In Chinese, (), meaning ''Tomb'', refers to an asterism consisting of ζ Aquarii, γ Aquarii, η Aquarii and π 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, ζ Aquarii itself is known as (, (英語:the First Star of Tomb).)〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 5 月 16 日 )〕

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