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Delta Aurigae
Delta Aurigae (δ Aur, δ Aurigae) is the Bayer designation for an astrometric binary〔 star in the constellation Auriga. It is visible to the naked eye with an apparent visual magnitude of 3.715.〔 Based upon its annual parallax shift of 25.88 mas,〔 it is some distant from the Earth, give or take an eight light-year margin of error. This star is the namesake for the Delta Aurigids, a meteor shower that occurs between October 6–15.〔 The radiant point for this shower passes several degrees to the south of the star.〔
The visible component of this system is a giant star with a stellar classification of K0 III.〔 It has 11 times the radius of the Sun and shines with 62 times the Sun's luminosity. This energy is being radiated from the star's outer envelope at an effective temperature of 4,786 K.〔 This heat gives the star the orange-hued glow of a K-type star.〔
==Name==
In Indian astronomy, it is known by the Sanskrit name ''Prajāpati'' (प्रजापति), "the Lord of Creation".〔("Auriga" ), by Richard Hinckley Allen in Star Names: Their Lore and Meaning〕〔(Monier-Williams Sanskrit dictionary: ''pra-cchana—pra-jalpa'' )〕
In Chinese, (), meaning ''Eight Kinds of Crops'', refers to an asterism consisting of δ Aurigae, ξ Aurigae, 26 Camelopardalis, 14 Camelopardalis, 7 Camelopardalis, 9 Aurigae, 11 Camelopardalis and 31 Camelopardalis.〔 ''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, δ Aurigae itself is known as (, (英語:the First Star of Eight Kinds of Crops)),〔 http://zh.wikipedia.org/wiki/%E5%BE%A1%E5%A4%AB%E5%BA%A7〕 refers to the rice.
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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