Alpha Camelopardalis
Star in the constellation Camelopardalis / From Wikipedia, the free encyclopedia
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Alpha Camelopardalis, Latinized from α Camelopardalis, is a star in the northern constellation of Camelopardalis. With an apparent visual magnitude of 4.3, it is 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 light-years from Earth based on parallax measurements.
Quick Facts Constellation, Right ascension ...
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Camelopardalis |
Right ascension | 04h 54m 03.01040s[1] |
Declination | +66° 20′ 33.6365″[1] |
Apparent magnitude (V) | 4.29[2] |
Characteristics | |
Spectral type | O9Ia[3] |
U−B color index | −0.87[2] |
B−V color index | +0.05[2] |
R−I color index | 0.00[2] |
Astrometry | |
Radial velocity (Rv) | +6.1[4] km/s |
Proper motion (μ) | RA: –0.13[1] mas/yr Dec.: +6.89[1] mas/yr |
Parallax (π) | 0.52 ± 0.19 mas[1] |
Distance | approx. 6,000 ly (approx. 1,900 pc) |
Absolute magnitude (MV) | –7.1[5] |
Details[6] | |
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[7] Myr |
Other designations | |
Database references | |
SIMBAD | data |
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