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Kappa Aquarii (κ Aqr, κ Aquarii) is the Bayer designation for a double star in the equatorial constellation of Aquarius. It has the traditional name Situla, a Latin word meaning "bucket" or "water jar".〔 This system is visible to the naked eye, but it is faint at an apparent magnitude of 5.03.〔 Based upon parallax measurements made during the Hipparcos mission, the distance to Kappa Aquarii is around .〔 This is most probably a wide binary star system.〔 The brighter component is a giant star with a stellar classification of K2 III.〔 It has exhausted the supply of hydrogen at its core and has expanded to 13〔 times the radius of the Sun. Kappa Aquarii is radiating 60〔 times the Sun's luminosity from its outer envelope at an effective temperature of 4,581 K,〔 giving it the orange-hued glow of a K-type star.〔 The fainter companion star is located at an angular separation of 98.3 arcseconds and has an apparent magnitude of 8.8.〔 ==In culture== In Chinese, (), meaning ''Temple'', refers to an asterism consisting of κ Aquarii, 44 Aquarii, 51 Aquarii and HD 216718.〔 ''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, κ Aquarii itself is known as (, (英語:the Third Star of Temple).).〔 (香港太空館 - 研究資源 - 亮星中英對照表 ), Hong Kong Space Museum. Accessed on line November 23, 2010.〕 From this Chinese name, the name Heu Leang was appeared, meaning ''the Empty Bridge''.〔 ''Endymion'', an 1818 poem by John Keats, describes the star in its form as a water urn thusly: USS Situla (AK-140) was a United States Navy Crater class cargo ship named after the star. 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「Kappa Aquarii」の詳細全文を読む スポンサード リンク
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