HD 12467 is a single[11] star in the northern circumpolar constellation of Cepheus. It has a white hue and is barely visible to the naked eye with an apparent visual magnitude of 6.05.[2] The distance to this object is 231 light years based on parallax,[1] but it is drifting closer with a heliocentric radial velocity of −9 km/s.[5]
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Cepheus |
Right ascension | 2h 9m 25.30805s[1] |
Declination | +81° 17′ 45.3964″[1] |
Apparent magnitude (V) | 6.05[2] |
Characteristics | |
Spectral type | A1.5V[3] |
U−B color index | 0.06[4] |
B−V color index | 0.11[4] |
Astrometry | |
Radial velocity (Rv) | −9.0±3.0[5] km/s |
Proper motion (μ) | RA: −34.605[1] mas/yr Dec.: 6.674[1] mas/yr |
Parallax (π) | 14.1120 ± 0.0500 mas[1] |
Distance | 231.1 ± 0.8 ly (70.9 ± 0.3 pc) |
Absolute magnitude (MV) | +1.81[6] |
Details | |
Mass | 1.81[7] M☉ |
Radius | 1.92[8] R☉ |
Luminosity | 16[6] L☉ |
Surface gravity (log g) | 4.30[7] cgs |
Temperature | 8,528[7] K |
Rotational velocity (v sin i) | 130[9] km/s |
Age | 254[7] Myr |
Other designations | |
Database references | |
SIMBAD | data |
This object is an ordinary A-type main-sequence star with a stellar classification of A1.5V,[3] which indicates it is generating energy through core hydrogen fusion. It is 254[7] million years old with a relatively high projected rotational velocity of 130 km/s.[9] The star has 1.8[7] times the mass of the Sun and 1.9[8] times the Sun's radius. It is radiating 16[6] times the luminosity of the Sun from its photosphere at an effective temperature of 8,528 K.[7]
The star displays an infrared excess with a signature that suggests it has two debris disks. The inner disk is orbiting 7.4 AU from the host star with a mean temperature of 200 K, while the outer disk is 50 K at a separation of 119 AU.[8]