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Zeta Ceti (ζ Cet, ζ Ceti) is a star in the constellation Cetus. It has the traditional name Baten Kaitos (Arabic ''batn qaytus'' بطن قيتوس - "belly of the sea monster"). In the catalogue of stars in the ''Calendarium'' of Al Achsasi al Mouakket, this star was designated Rabah al Naamat (رابع ألنعامة - ''raabi3 al naʽāmāt''), which was translated into Latin as Quarta Struthionum, meaning ''the fourth ostrich''. This star, along with η Cet (Deneb Algenubi), θ Cet (Thanih Al Naamat), τ Cet (Thalath Al Naamat), and υ Cet, were Al Naʽāmāt (ألنعامة), the Hen Ostriches.〔η Cet as Aoul al Naamat or Prima Struthionum (the first ostrich), θ Cet as Thanih al Naamat or Secunda Struthionum (the second ostrich), τ Cet as Thalath al Naamat or Tertia Struthionum (the third ostrich), and ζ Cet as Rabah al Naamat or Quarta Struthionum (the fourth ostrich). υ Cet should be Khamis al Naamat or Quinta Struthionum (the fifth ostrich) consistently, but Al Achsasi Al Mouakket designated the title ''the fifth ostrich'' to γ Gam with uncleared consideration.〕 In Chinese, (), meaning ''Square Celestial Granary'', refers to an asterism consisting of ζ Ceti, ι Ceti, θ Ceti, η Ceti, τ Ceti and 57 Ceti.〔 ''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 Ceti itself is known as (, (英語:the Second Star of Square Celestial Granary).)〔 (香港太空館 - 研究資源 - 亮星中英對照表 ), Hong Kong Space Museum. Accessed on line November 23, 2010.〕 ==Structure== Zeta Ceti is a yellowish star of spectral class K0 IIIBa0.1 and is approximately 260 light years from the Earth. Its apparent magnitude is +3.9. *Coordinates for the equinox J2000: * *Right ascension: * *Declination: 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「Zeta Ceti」の詳細全文を読む スポンサード リンク
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