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・ Theuville, Val-d'Oise
・ Theuville-aux-Maillots
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・ TheV0id
・ Thevakkal
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・ Thevalakkara Chellappan
・ Thevally
・ Thevally Palace
・ Thevannoor
・ Theta Persei
・ Theta Phi Alpha
・ Theta Phi Sigma
・ Theta Pi Sigma
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Theta Piscis Austrini
・ Theta Piscium
・ Theta Pyxidis
・ Theta representation
・ Theta Reticuli
・ Theta rhythm
・ Theta role
・ Theta Sagittae
・ Theta Sagittarii
・ Theta Scorpii
・ Theta Sculptoris
・ Theta Serpentis
・ Theta solvent
・ Theta structure
・ Theta Tau


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Theta Piscis Austrini : ウィキペディア英語版
Theta Piscis Austrini





Theta Piscis Austrini (Theta PsA, θ Piscis Austrini, θ PsA) is multiple star system in constellation of Piscis Austrinus, with an apparent magnitude of +5.02. The primary component is a white A-type main sequence star. It is approximately 290 light years from Earth.〔
Theta Piscis Austrini is moving through the Galaxy at a speed of 21.3 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,600 and 38,300 light years from the center of the Galaxy.〔(Theta Piscis Austrini (HIP 107608) )〕
Theta Piscis Austrini came closest to the Sun 2.7 million years ago when it had brightened to magnitude 4.54 from a distance of 256 light years.〔
==Naming==
In Chinese, (), meaning ''Celestial Money'', refers to an asterism consisting of refers to an asterism consisting of θ Piscis Austrini, 13 Piscis Austrini, ι Piscis Austrini, μ Piscis Austrini and τ Piscis Austrini. Consequently, θ Piscis Austrini itself is known as (, (英語:the Second Star of Celestial Money).)〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 5 日 )〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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