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The luminosity class II in the Yerkes spectral classification is given to bright giants. These are stars which straddle the boundary between giants and supergiants, and the classification is in general given to giant stars with exceptionally high luminosity, but which are not sufficiently bright or massive to be classified as supergiants. Well known stars which are classified as bright giants include: * Epsilon Canis Majoris (Adhara): a blue-white (B-type) bright giant * Theta Scorpii (Sargas): a white (F-type) bright giant * Beta Capricorni (Dabih): a yellow-white (G-type) bright giant * Alpha Hydrae (Alphard): an orange (K-type) bright giant * Alpha Herculis (Rasalgethi): a red (M-type) bright giant * Gamma Canis Majoris (Muliphein) a (B-Type) bright giant ==See also== *Red giant 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「Bright giant」の詳細全文を読む スポンサード リンク
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