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・ Zetela kopua
・ Zetela tangaroa
・ Zetela textilis
・ Zetela variabilis
・ Zeterklippen
・ Zetes (company)
・ Zetex
・ Zetex (fabric)
・ Zetex Semiconductors
・ Zeth Höglund
・ Zethalia
・ Zethalia zelandica
・ Zeta (wasp)
・ Zeta Andromedae
・ Zeta Antliae
Zeta Apodis
・ Zeta Aquarii
・ Zeta Aquilae
・ Zeta Arae
・ Zeta argillaceum
・ Zeta Arietis
・ Zeta Aurigae
・ Zeta Banovina
・ Zeta Beta Tau
・ Zeta Bosio
・ Zeta Boötis
・ Zeta Caeli
・ Zeta Cancri
・ Zeta Canis Majoris
・ Zeta Canis Minoris


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Zeta Apodis : ウィキペディア英語版
Zeta Apodis


Zeta Apodis (ζ Aps, ζ Apodis) is the Bayer designation for a star in the southern constellation of Apus. It has an apparent visual magnitude of +4.78,〔 which is bright enough to allow it to be seen with the naked eye. The distance to this star is known from parallax measurements to be around .〔
The spectrum of Zeta Apodis matches a stellar classification of K2 III,〔 with the luminosity class of III indicating it is an evolved giant star. The measured angular diameter of this star, after correction for limb darkening, is .〔 At the estimated distance of Eta Draconis,〔 this yields a physical size of about 11 times the radius of the Sun.〔 The outer atmosphere has an effective temperature of 4,388 K,〔 which gives it the orange-hued glow of a K-type star.〔
==Naming==
In Chinese caused by adaptation of the European southern hemisphere constellations into the Chinese system, (), meaning ''Exotic Bird'', refers to an asterism consisting of ζ Apodis, ι Apodis, β Apodis, γ Apodis, δ Octantis, δ1 Apodis, η Apodis, α Apodis and ε Apodis. Consequently, ζ Apodis itself is known as (, (英語:the First Star of Exotic Bird).)〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 29 日 )〕

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 Apodis」の詳細全文を読む



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