Alpha Camelopardalis
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 04h 54m 03.011s |
| Declination | +66° 20′ 33.63″ |
| Apparent magnitude (V) | 4.29 |
| Characteristics | |
| Evolutionary stage | Supergiant |
| Spectral type | O9Ia |
| U−B color index | −0.87 |
| B−V color index | +0.05 |
| R−I color index | 0.00 |
| Astrometry | |
| Radial velocity (Rv) | +6.1 km/s |
| Proper motion (μ) | RA: +0.222 mas/yr Dec.: +7.198 mas/yr |
| Parallax (π) | 0.5916±0.1333 mas |
| Distance | approx. 6,000 ly (approx. 1,700 pc) |
| Absolute magnitude (MV) | −7.1 |
| Details | |
| Mass | 37.6 M☉ |
| Radius | 32.5 R☉ |
| Luminosity | 676,000 L☉ |
| Surface gravity (log g) | 2.97 cgs |
| Temperature | 29,000 K |
| Rotational velocity (v sin i) | 100 km/s |
| Age | ~2 Myr |
| Other designations | |
| α Cam, Alpha Cam, 9 Camelopardalis, 9 Cam, BD+66 358, FK5 178, GC 5924, HD 30614, HIP 22783, HR 1542, SAO 13298, PPM 15047, WDS J04541+6621, IRAS 04490+6615 | |
| Database references | |
| SIMBAD | data |
Alpha Camelopardalis is a blue hued star in the northern constellation of Camelopardalis. Its name is a Bayer designation that is Latinized from α Camelopardalis, and abbreviated Alpha Cam or α Cam. With an apparent visual magnitude of 4.3, it is visible to the naked eye as the third-brightest star in this not-very-prominent circumpolar constellation; the first and second-brightest stars being Beta Camelopardalis and CS Camelopardalis, respectively. It is the farthest constellational star, with a distance of approximately 6,000 ly from Earth based on parallax measurements.