HD 125072

HD 125072
Observation data
Epoch J2000      Equinox J2000
Constellation Centaurus
Right ascension 14h 19m 04.8348s[1]
Declination −59° 22′ 44.533″[1]
Apparent magnitude (V) 6.66[1]
Characteristics
Spectral type K3 IV[1]
U−B color index +0.905[1]
B−V color index +1.025[1]
Variable type None
Astrometry
Radial velocity (Rv)−14.9 km/s
Proper motion (μ) RA: −454.53 mas/yr
Dec.: −810.00 mas/yr
Parallax (π)84.50 ± 0.79[1] mas
Distance38.6 ± 0.4 ly
(11.8 ± 0.1 pc)
Details
Surface gravity (log g)4.5[2] cgs
Temperature4,965[2] K
Metallicity[Fe/H] = -0.70[3]
Age9.98×109[3] years
Other designations
CD-58°5564, GJ 542, HD 125072, LHS 2892, LTT 5625, GCTP, SAO 241627, HIP 69972.[1]

HD 125072 is K3-IV class star in the constellation Centaurus. The components of the space velocity for this star are U=−18.5, V=−6.9 and W=−26.9 km/s. Based on the composition and kinematics of this star, it has an estimated age of about 10 billion years.[3]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "SIMBAD query result: LHS 2892 -- High proper-motion Star". Centre de Données astronomiques de Strasbourg. Retrieved 2008-04-09.
  2. ↑ 2.0 2.1 Perrin, M.-N.; Cayrel de Strobel, G.; Dennefeld, M. (1988). "High S/N detailed spectral analysis of four G and K dwarfs within 10 PC of the sun". Astronomy and Astrophysics 191 (2): 237–247. Bibcode:1988A&A...191..237P.
  3. ↑ 3.0 3.1 3.2 Lachaume, R.; Dominik, C.; Lanz, T.; Habing, H. J. (1999). "Age determinations of main-sequence stars: combining different methods". Astronomy and Astrophysics 348: 897–909. Bibcode:1999A&A...348..897L.