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HD 93403 is a highly luminous hot blue star in the Carina Nebula in the constellation Carina. It is of spectral type O5.5III, though has also been determined to be a spectroscopic binary composed of a blue supergiant and blue main sequence star of spectral type O5.5I and O7V respectively.〔 ==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「HD 93403」の詳細全文を読む スポンサード リンク
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