HD 167714

HD 167714
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Octans
Right ascension 18h 29m 19.94396s[1]
Declination −80° 13′ 57.7452″[1]
Apparent magnitude (V) 5.95±0.01[2]
Characteristics
Evolutionary stage red giant branch[3]
Spectral type K2 III[4]
U−B color index +1.27[5]
B−V color index +1.16[5]
Astrometry
Radial velocity (Rv)−13.9±0.4[6] km/s
Proper motion (μ) RA: −22.298 mas/yr[1]
Dec.: −63.166 mas/yr[1]
Parallax (π)9.0795 ± 0.026 mas[1]
Distance359 ± 1 ly
(110.1 ± 0.3 pc)
Absolute magnitude (MV)+0.57[7]
Details
Mass1.39+0.40
−1.10[8] M☉
Radius12.28[9] R☉
Luminosity64.6+3.0
−2.9[8] L☉
Surface gravity (log g)2.55[1] cgs
Temperature4,692±122[9] K
Metallicity [Fe/H]+0.11[10] dex
Rotational velocity (v sin i)1.7±1.2[11] km/s
Age1.99+0.843
−0.453[10] Gyr
Other designations
32 G. Octantis[12], CPD−80°849, GC 25089, HD 167714, HIP 90606, HR 6837, SAO 258796[13]
Database references
SIMBADdata

HD 167714, also known as HR 6837, is a solitary, orange hued star located in the southern circumpolar constellation Octans. It has apparent magnitude of 5.95,[2] allowing it to be faintly visible to the naked eye. Based on parallax measurements from Gaia, the object is estimated to be 359 light years distant.[1] With a heliocentric radial velocity of −13.9 km/s,[6] it is approaching the Solar System.

This is an evolved red giant with a stellar classification of K2 III.[4] It appears to be on the red giant branch,[3] generating energy by fusing a hydrogen shell around an inert helium core. At present it has 1.4 times the mass of the Sun[8] and at the age of two billion years,[10] it has expanded to 12.3 times its girth.[9] It shines with a luminosity 65 times greater than that of the Sun[8] from its enlarged photosphere at an effective temperature of 4,692 K.[9] HD 167714 has a near-solar metallicity[10] and is spinning slowly with a projected rotational velocity of 1.7 km/s.[11]

  1. ^ a b c d e f Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Tycho2000 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Cardiel2021 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Houk1975 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Johnson1966 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  8. ^ a b c d Cite error: The named reference Charbonnel2020 was invoked but never defined (see the help page).
  9. ^ a b c d Cite error: The named reference Stassun2019 was invoked but never defined (see the help page).
  10. ^ a b c d Cite error: The named reference soto2021 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference De Medeiros2014 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Gould1879 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).