The luminosity class II in the Yerkes spectral classification is given to bright giants. These are stars which straddle the boundary between ordinary giants and supergiants, based on the appearance of their spectra.[1]

Example bright giantsEdit

Well known stars which are classified as bright giants include:

See alsoEdit

ReferencesEdit

  1. ^ Abt, Helmut A. (1957). "Line Broadening in High-Luminosity Stars. I. Bright Giants". Astrophysical Journal. 126: 503. Bibcode:1957ApJ...126..503A. doi:10.1086/146423.