Gamma Camelopardalis
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 03h 50m 21.5089s |
| Declination | +71° 19′ 56.148″ |
| Apparent magnitude (V) | 4.66 + 9.07 |
| Characteristics | |
| Spectral type | A2 IVn |
| U−B color index | +0.07 |
| B−V color index | +0.03 |
| Astrometry | |
| Radial velocity (Rv) | 0.2±2.5 km/s |
| Proper motion (μ) | RA: +18.17 mas/yr Dec.: −42.85 mas/yr |
| Parallax (π) | 9.09±0.18 mas |
| Distance | 359 ± 7 ly (110 ± 2 pc) |
| Absolute magnitude (MV) | −0.62 |
| Details | |
| γ Cam A | |
| Mass | 2.98±0.04 M☉ |
| Radius | 5.73 R☉ |
| Luminosity | 185 L☉ |
| Temperature | 8,892 K |
| Rotational velocity (v sin i) | 205 km/s |
| Other designations | |
| γ Cam, BD+70°259, FK5 138, GC 4557, HD 23401, HIP 17959, HR 1148, SAO 5006, CCDM 03504+7120 | |
| Database references | |
| SIMBAD | data |
Gamma Camelopardalis, Latinized from γ Camelopardalis, is a suspected wide binary star system in the northern circumpolar constellation of Camelopardalis. With a visual magnitude of 4.66, it is faintly visible to the naked eye. Based upon an annual parallax shift of 9.09 mas as seen from Earth, this star is located about 359 light years from the Sun.
The brighter primary, designated component A, is a white-hued A-type subgiant star with a stellar classification of A2 IVn. It is spinning rapidly with a projected rotational velocity of 205 km/s. This is giving the star an oblate shape with an equatorial bulge that is 17% larger than the polar radius. It has about three times the mass of the Sun and 5.73 times the Sun's radius. The star is radiating 185 times the Sun's luminosity from its photosphere at an effective temperature of 8,892 K.
The magnitude 9.07 secondary, BD+70 260, designated component C, lies at an angular separation of 106.00 arc seconds along a position angle of 85°, as of 2011. Component B is a magnitude 12.40 visual companion at a separation of 56.30 arc seconds along position angle 247°.