Kappa Canis Majoris
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Canis Major |
| Right ascension | 06h 49m 50.5s |
| Declination | −32° 30′ 31″ |
| Apparent magnitude (V) | +3.50 |
| Distance | 790 ± 96 ly (242 ± 29 pc) |
| Spectral type | B1.5Ve |
| Other designations | |
Kappa Canis Majoris (κ CMa, κ Canis Majoris) is a star in the constellation Canis Major. It is approximately 790 light years from Earth.
κ Canis Majoris is a blue-white B-type main sequence-star with a mean apparent magnitude of +3.50. This is a rapidly rotating Be star with 5.9 times the radius of the Sun. It is classified as a Gamma Cassiopeiae type variable star and its brightness varies from magnitude +3.4 to +3.97. It has become 50% brighter between 1963 and 1978, from magnitude 3.96 or so to 3.52.
In Chinese, 弧矢 (Hú Shǐ), meaning Bow and Arrow, refers to an asterism consisting of κ Canis Majoris, δ Canis Majoris, η Canis Majoris, HD 63032, HD 65456, ο Puppis, k Puppis, ε Canis Majoris and π Puppis. Consequently, κ Canis Majoris itself is known as 弧矢八 (Hú Shǐ bā, English: the Eighth Star of Bow and Arrow.)
...
Wikipedia