Bright giants are stars of luminosity class II in the Yerkes spectral classification. These are stars which straddle the boundary between ordinary giants and supergiants, based on the appearance of their spectra. The bright giant luminosity class was first defined in 1943.
Example bright giants
Well known stars which are classified as bright giants include:
- Alpha Carinae (Canopus): a white (A-type) bright giant
- Epsilon Canis Majoris (Adhara): a blue-white (B-type) bright giant
- Omicron Scorpii: a white (A-type) bright giant
- Theta Scorpii (Sargas): a white (F-type) bright giant
- Beta Draconis: a yellow (G-type) bright giant
- Beta Capricorni (Dabih): an orange (K-type) bright giant
- Alpha Herculis (Rasalgethi): a red (M-type) bright giant
- Gamma Canis Majoris (Muliphein) a (B-Type) bright giant
- Abt, Helmut A. (1957). "Line Broadening in High-Luminosity Stars. I. Bright Giants". Astrophysical Journal 126: 503. doi:10.1086/146423. Bibcode: 1957ApJ...126..503A.
- Steven J. Dick (2019). Classifying the Cosmos: How We Can Make Sense of the Celestial Landscape. Springer. p. 176. ISBN 9783030103804. https://books.google.bg/books?id=UymODwAAQBAJ.
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