Kappa Persei
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Perseus |
| Right ascension | 03h 09m 29.77156s |
| Declination | +44° 51′ 27.1463″ |
| Apparent magnitude (V) | 3.80 |
| Characteristics | |
| Evolutionary stage | red clump |
| Spectral type | G9.5 IIIb |
| U−B color index | +0.83 |
| B−V color index | +0.98 |
| Astrometry | |
| Radial velocity (Rv) | 27.43±0.42 km/s |
| Proper motion (μ) | RA: +172.99 mas/yr Dec.: −143.40 mas/yr |
| Parallax (π) | 28.93±0.21 mas |
| Distance | 112.7 ± 0.8 ly (34.6 ± 0.3 pc) |
| Absolute magnitude (MV) | 1.20 |
| Details | |
| Mass | 1.50 M☉ |
| Radius | 9 R☉ |
| Luminosity | 39.8 L☉ |
| Surface gravity (log g) | 2.9 cgs |
| Temperature | 4,857±69 K |
| Metallicity [Fe/H] | 0.04 dex |
| Rotational velocity (v sin i) | 3.0 km/s |
| Age | 4.58 Gyr |
| Other designations | |
| Misam, Kap Per, κ Per, 27 Persei, BD+44°631, HD 19476, HIP 14668, HR 941, SAO 38609, WDS J03095+4451A | |
| Database references | |
| SIMBAD | data |
Kappa Persei or κ Persei, is a triple star system in the northern constellation of Perseus. Based upon an annual parallax shift of 28.93 mas, it is located at a distance of 113 light-years from the Sun.
The system consists of a spectroscopic binary, designated Kappa Persei A, which can be seen with the naked eye, having an apparent visual magnitude of 3.80. The third star, designated Kappa Persei B, is of magnitude 13.50.
Kappa Persei A's two components are designated Kappa Persei Aa (officially named Misam /ˈmaɪzəm/, the traditional name of the entire system) and Ab.