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NGC 2169
NGC 2169, is an open cluster in the Orion constellation. It was possibly discovered by Giovanni Batista Hodierna before 1654 and discovered by William Herschel on October 15, 1784. NGC 2169 is at a distance of about 3,600 light years away from Earth. It is nicknamed "The '37' Cluster" due to its striking resemblance to the numerals "37".〔 Constellation Guide, (Orion Constellation ) (accessed 2014-03-03) 〕 The cluster is composed of components ''Collinder 38'', a I3pn open cluster,〔 Backyard Astronomy for Amateur Astronomers, ("Collinder 38" ) (accessed 2014-03-03) 〕 and ''Collinder 83'', a III3m open cluster. == External links ==
*(SEDS entry ) *(Astronomy Picture of the Day ) *
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 2169」の詳細全文を読む
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