Bételgeuse
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58Alp Ori
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Bételgeuse is a M-type (Red) star located in the constellation Orion. It carries the designation 58Alp Ori.
Located approximately 497.9 light-years from Earth, Bételgeuse resides within the broader disk of our Milky Way galaxy.
Bételgeuse is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
Bételgeuse has an apparent magnitude of +0.45, making it a bright and prominent star that is readily visible to the naked eye. It is one of the more conspicuous stars in its region of the sky. Observers will note its red hue, which corresponds to a B-V color index of +1.500.
Propriétés physiques
| Classe Spectrale | M Class M — M-type (Red) |
| Indice de couleur (B−V) | 1,500 |
Observation
| Magnitude Apparente | +0.45 |
| Magnitude Absolue | -5,47 |
| Distance | 498 ly |
| Constellation | Orion |
Position
| Ascension droite | 5h 55,17m |
| Déclinaison | 7° 24,42′ |
Related Chemistry
Explore the chemical elements connected to Bételgeuse on our sister site ChemFYI.
TiO molecular bands dominate M-type supergiant spectra
Iron-group elements produced during advanced shell burning
Abundant in M-type atmospheres, forming TiO and H₂O molecules
Carbon-12 synthesised via the triple-alpha process in the core
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