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CPD−57° 2874 : ウィキペディア英語版 | CPD−57° 2874
CPD−57° 2874 is a class B() supergiant in the constellation Carina. It is a rare star as it is hot but has dust which shows forbidden lines and IR emissions. In 2007 the high spatial and spectral resolution of the star's circumstellar envelope was studied. This was the first time such a study was carried out on a class B() supergiant. The star is surrounded by a dust disk, but planets are unlikely since the lifetime of giants like this is not long enough for planets to form. It has entered its final stages and started blowing its hull out into space.〔(【引用サイトリンク】 title=CPD -572874 )〕 ==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「CPD−57° 2874」の詳細全文を読む
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