HD 12467
Star in the constellation Cepheus
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HD 12467 is a single star[11] 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.[3] The distance to this object is 229 light years based on parallax,[2] but it is drifting closer with a heliocentric radial velocity of −9 km/s.[6]
| Observation data Epoch J2000.0 Equinox ICRS | |
|---|---|
| Constellation | Cepheus[1] |
| Right ascension | 02h 09m 25.30945s[2] |
| Declination | +81° 17′ 45.3977″[2] |
| Apparent magnitude (V) | 6.05[3] |
| Characteristics | |
| Evolutionary stage | main sequence[2] |
| Spectral type | A1.5V[4] |
| U−B color index | 0.06[5] |
| B−V color index | 0.11[5] |
| Astrometry | |
| Radial velocity (Rv) | −9.0±3.0[6] km/s |
| Proper motion (μ) | RA: −34.818[2] mas/yr Dec.: +6.596[2] mas/yr |
| Parallax (π) | 14.2384±0.0245 mas[2] |
| Distance | 229.1 ± 0.4 ly (70.2 ± 0.1 pc) |
| Absolute magnitude (MV) | +1.81[1] |
| Details | |
| Mass | 1.81[7] M☉ |
| Radius | 1.92[8] R☉ |
| Luminosity | 16[1] 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 | |
| BD+80°6, FK5 3943, GC 2517, HD 12467, HIP 10054, HR 597, SAO 344[10] | |
| Database references | |
| SIMBAD | data |
This object is an ordinary A-type main-sequence star with a stellar classification of A1.5V,[4] which indicates it is generating energy through core hydrogen fusion. It is 254 million years old[7] with a relatively high projected rotational velocity of 130 km/s.[9] The star has 1.8 times the mass of the Sun[7] and 1.9 times the Sun's radius.[8] It is radiating 16 times the luminosity of the Sun[1] 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]