HD 114837

HD 114837
Observation data
Epoch J2000      Equinox J2000
Constellation Centaurus
Right ascension 13h 14m 15.14594s[1]
Declination –59° 06′ 11.6528″[1]
Apparent magnitude (V) 4.90[2] + 10.2[3]
Characteristics
Spectral type F6 V Fe-0.4[4]
B−V color index 0.489±0.020[2]
Astrometry
Radial velocity (Rv)−64.0±0.3[5] km/s
Proper motion (μ) RA: −249.254[1] mas/yr
Dec.: −153.256[1] mas/yr
Parallax (π)55.0143 ± 0.2644 mas[1]
Distance59.3 ± 0.3 ly
(18.18 ± 0.09 pc)
Absolute magnitude (MV)3.73[6]
Details
HD 114837 A
Mass1.14[7] M☉
Radius1.3[8] R☉
Luminosity3.12[2] L☉
Surface gravity (log g)4.21[9] cgs
Temperature6,346±80[9] K
Metallicity [Fe/H]−0.27[9] dex
Rotational velocity (v sin i)8.8±3.0[6] km/s
Age3.40[9] Gyr
Other designations
CD−58° 4940, GJ 503, HD 114837, HIP 64583, HR 4989, SAO 240666, WDS J13143-5906A[10]
Database references
SIMBADdata

HD 114837 is a suspected binary star[7][3] system in the southern constellation of Centaurus. The brighter star is faintly visible to the naked eye with an apparent visual magnitude of 4.90.[2] It has a magnitude 10.2 candidate common proper motion companion at an angular separation of 4.2″, as of 2014.[3] The distance to this system, based on an annual parallax shift of 55.0143″ as seen from Earth's orbit,[1] is 59.3 light years. It is moving closer with a heliocentric radial velocity of −64 km/s,[5] and will approach to within 21.8 ly in around 240,600 years.[11]

The primary component is an F-type main-sequence star with a stellar classification of F6 V Fe-0.4,[4] showing a mild underabundance of iron in its spectrum. It is about 3.4[9] billion years old with 1.14[7] times the mass of the Sun and about 1.3[8] times the Sun's radius. This star is radiating 3.12[2] times the Sun's luminosity from its photosphere at an effective temperature of 6,346 K.[9]

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Chini2014 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Gray2006 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference AmmlerVonEiff2012 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference fuhrmann2017 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Cadars2001 was invoked but never defined (see the help page).
  9. ^ a b c d e f Cite error: The named reference Casagrande2011 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference BailerJones2015 was invoked but never defined (see the help page).