HD 114386

HD 114386
Observation data
Epoch J2000      Equinox J2000
Constellation Centaurus
Right ascension 13h 10m 39.824s[1]
Declination −35° 03′ 17.21″[1]
Apparent magnitude (V) 8.73[2]
Characteristics
Spectral type K3 V[2]
B−V color index 0.982[2]
Astrometry
Radial velocity (Rv)33.350±0.0004[3] km/s
Proper motion (μ) RA: −137.143 mas/yr[1]
Dec.: −324.874 mas/yr[1]
Parallax (π)35.7355 ± 0.0200 mas[1]
Distance91.27 ± 0.05 ly
(27.98 ± 0.02 pc)
Absolute magnitude (MV)6.49[2]
Details
Mass0.76±0.01[4] M☉
Radius0.73±0.01[4] R☉
Luminosity0.28±0.01[4] L☉
Surface gravity (log g)4.58±0.02[4] cgs
Temperature4,926±13[4] K
Metallicity [Fe/H]−0.012[5] dex
Rotational velocity (v sin i)3.06[5] km/s
Age8.8±2.8[4] Gyr
Other designations
CD−34°8698, HD 114386, HIP 64295, SAO 204193, PPM 291056, LTT 5041, NLTT 33118[6]
Database references
SIMBADdata

HD 114386 is a star with a pair of orbiting exoplanets in the southern constellation of Centaurus. It has an apparent visual magnitude of 8.73,[2] which means it cannot be viewed with the naked eye but can be seen with a telescope or good binoculars. Based on parallax measurements, the system is located at a distance of 91 light years from the Sun. It is receding with a radial velocity of 33.4 km/s.[3] The star shows a high proper motion, traversing the celestial sphere at an angular rate of 0.318 arcsec yr−1.[7]

The spectrum of HD 114386 yields a stellar classification of K3 V,[2] matching a K-type main-sequence star, or orange dwarf. It has 76% of the mass of the Sun and 73% of the Sun's radius. HD 114386 is a much older star than the Sun with an estimated age of roughly nine billion years.[4] The abundance of iron in the stellar atmosphere, a measure of the star's metallicity, is nearly solar.[5] It is rather dim compared to the Sun, radiating just 28% of the luminosity of the Sun from its photosphere at an effective temperature of 4,926 K.[4]

  1. ^ a b c d Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference Mayor2004 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference GaiaRV was invoked but never defined (see the help page).
  4. ^ a b c d e f g h Cite error: The named reference Bonfanti_et_al_2016 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Rice_Brewer_2020 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Luyten1995 was invoked but never defined (see the help page).