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Nu2 Arae
:''For other star systems with this Bayer designation, see Nu Arae.''
Nu2 Arae (ν2 Arae, ν2 Ara) is the Bayer designation for a star in the southern constellation of Ara. It is approximately from the Earth and is faintly visible to the naked eye with an apparent visual magnitude of 6.10.〔 The stellar classification of B9.5 III-IV〔 shows this to be a B-type star with a spectrum that displays features part way between the subgiant and giant star stages. The star is sometimes referred as Upsilon2 Arae (υ2 Arae).〔Note for (HR 6632 )〕 ==References==
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「Nu2 Arae」の詳細全文を読む
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