Bright giant
Bright giants are stars of luminosity class II. This type generally includes giant stars (luminosity class III) with extraordinarily high luminosity, but which are not bright or massive enough to belong to the supergiants (luminosity class I).
Known bright giants:
| Surname | Spectral class | colour |
|---|---|---|
| Adhara (ε Canis Majoris) | B. | blue White |
| Pherkad (γ Ursae Minoris) | A. | White |
| Sargas (θ Scorpii) | F. | yellow white |
| Dabih ( β¹ Capricorni ) | G | yellow |
| Alphard (α Hydrae) | K | orange |
| Ras Algethi (α¹ Herculis) | M. | red |
See also
literature
- Joachim Krautter et al .: Meyers Handbuch Weltall . 7th edition. 1994, ISBN 3-411-07757-3
Individual evidence
- ↑ A. Unsöld, B. Baschek: The new cosmos . P. 188 (7A)
- ↑ Hans-Ulrich Keller: Astrowissen . P. 162
- ↑ Spectral classes and phosphor classes