HD 68402

HD 68402
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Volans
Right ascension 08h 05m 23.69129s[1]
Declination −74° 24′ 37.4873″[1]
Apparent magnitude (V) 9.09 ± 0.02[2]
Characteristics
Spectral type G5 IV/V[3]
B−V color index +0.68[2]
Astrometry
Radial velocity (Rv)11.60 ± 0.49[4] km/s
Proper motion (μ) RA: −78.195 mas/yr[1]
Dec.: +78.973 mas/yr[1]
Parallax (π)12.7204 ± 0.0101 mas[1]
Distance256.4 ± 0.2 ly
(78.61 ± 0.06 pc)
Absolute magnitude (MV)+4.66[5]
Details[6]
Mass1.12 ± 0.05 M☉
Radius1.02 ± 0.05 R☉
Luminosity1.17+0.06
−0.07 L☉
Surface gravity (log g)4.43 ± 0.04[7] cgs
Temperature5,907 ± 68[7] K
Metallicity [Fe/H]+0.29 ± 0.10 dex
Rotational velocity (v sin i)2.9 ± 0.2 km/s
Age1 ± 0.9[7] Gyr
Other designations
CD−74° 392, CPD−74° 486, HD 68402, HIP 39589
Database references
SIMBADdata
Exoplanet Archivedata

HD 68402 is a solitary star located in the circumpolar constellation Volans. With an apparent magnitude of 9.09,[2] it is invisible to the naked eye but can be seen with an amateur telescope. This star is located at a distance of 256 light years based on its parallax shift but is drifting away at a rate of 11.60 km/s.[4]

HD 68402 has a classification of G5 IV/V,[3] which indicates that it is a G5 star with the characteristics of a subgiant and main-sequence star. Contrary to its classification, it is actually a G1 dwarf.[6] At present it is slightly more massive than the Sun and has a similar radius to the latter.[6] It radiates at 1.17[6] times the luminosity of the Sun from its photosphere at an effective temperature of 5,907 K,[7] which gives it a yellow hue. At an age of 1 billion years HD 68402[7] has a projected rotational velocity of almost 3 km/s and is metal rich like most planetary hosts (1.94 times to be exact).[6]

  1. ^ a b c d Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Hog2000 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Houk1975 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference XHIP was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference Jenkins2017 was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference Adibekyan2021 was invoked but never defined (see the help page).