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・ Theudas
・ Theudas (teacher of Valentinius)
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・ Theudebald (disambiguation)
・ Theta correspondence
・ Theta Crateris
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Theta Doradus
・ Theta Draconis
・ Theta Eridani
・ Theta function
・ Theta function (disambiguation)
・ Theta function of a lattice
・ Theta Geminorum
・ Theta graph
・ Theta group
・ Theta Gruis
・ Theta Herculis
・ Theta Hydrae
・ Theta Indi
・ Theta Island, Bermuda
・ Theta Islands


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Theta Doradus : ウィキペディア英語版
Theta Doradus

Theta Doradus (Theta Dor, θ Doradus, θ Dor) is an orange K-type giant with an apparent magnitude of +4.81. It is approximately 546 light years from Earth.
Theta Doradus is moving through the Galaxy at a speed of 31.9 km/s relative to the Sun. Its projected Galactic orbit carries it between 22,400 and 24,800 light years from the center of the Galaxy.〔(Theta Doradus (HIP 24372) )〕
==Naming==
In Chinese caused by adaptation of the European southern hemisphere constellations into the Chinese system, (), meaning ''White Patches Attached'', refers to an asterism consisting of θ Doradus and α Reticuli. Consequently, θ Doradus itself is known as (, (英語:the First Star of White Patches Attached).)〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 27 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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