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NGC 6584
NGC 6584 is a globular cluster in the constellation Telescopium that lies near Theta Arae and is 45000 light-years distant.〔 It is an Oosterhoff type I cluster, and contains at least 69 variable stars, most of which are RR Lyrae variables: 46 stars were identified as RRab variables, 15 as RRc variables, 1 RRe variable, 4 eclipsing binaries and 3 long period variables.〔 NGC 6584 is about 4 kpc from the Galactic center and about 2.7 kpc from the Galactic plane.〔"Physical Parameters of Galactic Globular Clusters" by S. Djorgovski〕 ==References==
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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「NGC 6584」の詳細全文を読む
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