Kappa Persei

Kappa Persei

Location of κ Persei (circled)
Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Perseus
Right ascension	03^h 09^m 29.77156^s[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

Kappa Persei is a triple star system in the constellation Perseus. It is 113 light-years away from the Sun.

References

1. van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600.
2. Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV Data, SIMBAD, Bibcode:1986EgUBV........0M.
3. Keenan, Philip C.; McNeil, Raymond C. (1989), "The Perkins catalog of revised MK types for the cooler stars", Astrophysical Journal Supplement Series, 71: 245, Bibcode:1989ApJS...71..245K, doi:10.1086/191373.
4. Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal, 135 (1): 209–231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209.
5. Famaey, B.; et al. (January 2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics, 430 (1): 165–186, arXiv:astro-ph/0409579, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272, S2CID 17804304.
6. Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", Astronomical Journal, 150 (3), 88, arXiv:1507.01466, Bibcode:2015AJ....150...88L, doi:10.1088/0004-6256/150/3/88, S2CID 118505114.