Omega Canis Majoris
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Canis Major |
| Right ascension | 07h 14m 48.7s |
| Declination | −26° 46′ 22″ |
| Apparent magnitude (V) | +4.01 |
| Distance | 920 ± 150 ly (283 ± 47 pc) |
| Spectral type | B2IV-Ve |
| Other designations | |
Omega Canis Majoris (ω CMa, ω Canis Majoris) is a star in the constellation Canis Major.
ω Canis Majoris is a blue-white B-type subgiant with a mean apparent magnitude of +4.01. It is approximately 920 light years from Earth. It is classified as a Gamma Cassiopeiae type variable star and its brightness varies from magnitude +3.60 to +4.18.
This star has 6.2 times the radius of the Sun and its outer atmosphere has an effective temperature of 21,019 K.[1]
References
- ↑ Underhill, A. B. et al. (November 1979), "Effective temperatures, angular diameters, distances and linear radii for 160 O and B stars", Monthly Notices of the Royal Astronomical Society 189: 601–605, Bibcode:1979MNRAS.189..601U, doi:10.1093/mnras/189.3.601
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