Kappa Persei
Kappa Persei is a triple star system in the constellation Perseus. It is 113 light-years away from the Sun.
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| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Perseus |
| Right ascension | 03h 09m 29.77156s[1] |
| Declination | +44° 51′ 27.1463″[1] |
| Apparent magnitude (V) | 3.80[2] |
| Characteristics | |
| Spectral type | G9.5 IIIb[3] |
| U−B color index | +0.83[2] |
| B−V color index | +0.98[2] |
| Astrometry | |
| Radial velocity (Rv) | 27.43±0.42[4] km/s |
| Proper motion (μ) | RA: +172.99[1] mas/yr Dec.: −143.40[1] mas/yr |
| Parallax (π) | 28.93 ± 0.21[1] mas |
| Distance | 112.7 ± 0.8 ly (34.6 ± 0.3 pc) |
| Absolute magnitude (MV) | 1.20[5] |
| Details | |
| Mass | 1.50[6] M☉ |
| Radius | 9[4] R☉ |
| Luminosity | 39.8[6] L☉ |
| Surface gravity (log g) | 2.9[4] cgs |
| Temperature | 4,857±69[6] K |
| Metallicity [Fe/H] | 0.04[4] dex |
| Rotational velocity (v sin i) | 3.0[4] km/s |
| Age | 4.58[6] Gyr |
| Database references | |
| SIMBAD | data |
References
- ↑ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F.. Validation of the new Hipparcos reduction. Astronomy and Astrophysics 474 (2) (2007). p. 653–664. doi:10.1051/0004-6361:20078357.
- ↑ 2.0 2.1 2.2 Mermilliod, J.-C.. Compilation of Eggen's UBV data, transformed to UBV (unpublished). Catalogue of Eggen's UBV Data (1986)SIMBAD.
- ↑ Keenan, Philip C.. The Perkins catalog of revised MK types for the cooler stars. Astrophysical Journal Supplement Series 71 (1989). p. 245. doi:10.1086/191373.
- ↑ 4.0 4.1 4.2 4.3 4.4 Massarotti, Alessandro. Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity. The Astronomical Journal 135 (1) (January 2008). p. 209–231. doi:10.1088/0004-6256/135/1/209.
- ↑ Famaey, B.. Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters. Astronomy and Astrophysics 430 (1) (January 2005). p. 165–186. doi:10.1051/0004-6361:20041272.
- ↑ 6.0 6.1 6.2 6.3 Luck, R. Earle. Abundances in the Local Region. I. G and K Giants. Astronomical Journal 150 (3) (2015). doi:10.1088/0004-6256/150/3/88.