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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 )〕
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