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Zeta Capricorni : ウィキペディア英語版 | Zeta Capricorni
Zeta Capricorni, (ζ Cap, ζ Capricorni), is a fourth-magnitude star in the constellation Capricornus. ζ Capricorni is a binary star, with the primary component ζ Capricorni A being a yellow G-type supergiant with an apparent magnitude of +3.77. It is considered one of the prototypical examples of a Barium star, properties of which include overabundances of carbon molecules (such as C2) and s-process elements. Zeta Capricorni has an overabundance of the s-process element praseodymium. Its companion, ζ Capricorni B is a white dwarf. The ζ Capricorni binary system is approximately 398 light years from Earth. ==Chinese Name== In Chinese, (), meaning ''Twelve States'', refers to an asterism which represents twelve ancient states in the Spring and Autumn Period and the Warring States period, consisting of ζ Capricorni, φ Capricorni, ι Capricorni, 38 Capricorni, 35 Capricorni, 36 Capricorni, χ Capricorni, θ Capricorni, 30 Capricorni, 33 Capricorni, 19 Capricorni, 26 Capricorni, 27 Capricorni, 20 Capricorni, η Capricorni and 21 Capricorni.〔 ''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 Capricorni itself represents the state of Yan ().,〔(Richard Hinckley Allen: Star Names — Their Lore and Meaning: Capricornus )〕 together with ν Ophiuchi in ''Left Wall of Heavenly Market Enclosure'' (asterism).〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 6 月 23 日 )〕
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