HD 86264

HD 86264
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Hydra
Right ascension 09h 56m 57.83878s[1]
Declination −15° 53′ 42.4291″[1]
Apparent magnitude (V) 7.41[2]
Characteristics
Spectral type F7V[3]
Apparent magnitude (B) 7.920[2]
Apparent magnitude (J) 6.505±0.019[2]
Apparent magnitude (H) 6.344±0.038[2]
Apparent magnitude (K) 6.224±0.023[2]
B−V color index 0.510±0.011[2]
Astrometry
Radial velocity (Rv)7.39±0.13[1] km/s
Proper motion (μ) RA: −14.313±0.024 mas/yr[1]
Dec.: −65.057±0.024 mas/yr[1]
Parallax (π)14.8646 ± 0.0214 mas[1]
Distance219.4 ± 0.3 ly
(67.27 ± 0.10 pc)
Absolute magnitude (MV)3.23[2]
Details
Mass1.46±0.01 M☉[4]
1.36+0.04
−0.05 M☉[5]
1.42[6] M☉
Radius1.53±0.02 R☉[4]
1.88[6] R☉
Luminosity4.02±0.04[4] L☉
Surface gravity (log g)4.13±0.04[5] cgs
Temperature6,616±39[4] K
Metallicity [Fe/H]0.26±0.03 Dex[7]
+0.202[6] dex
Rotational velocity (v sin i)12.8±0.5[6] km/s
Age0.8±0.2 Gyr[4]
2.78+0.47
−0.70 Gyr[5]
2.24[6] Gyr
Other designations
BD–15°2938, HD 86264, HIP 48780, SAO 155612, PPM 222239[8]
Database references
SIMBADdata
Exoplanet Archivedata

HD 86264 is a single[9] star with an exoplanetary companion in the equatorial constellation of Hydra. It is too faint to be readily visible to the naked eye with an apparent visual magnitude of 7.41.[2] The distance to this star, as determined by parallax measurements, is 219 light-years, and it is drifting further away with a radial velocity of +7.4 km/s.[1] A 2015 survey ruled out the existence of any stellar companions at projected distances above 30 astronomical units.[9]

This is an F-type main-sequence star with a stellar classification of F7V.[3] It is about two billion years old with a modest level of chromospheric activity and is spinning with a projected rotational velocity of 13 km/s.[6] The star is larger and more massive compared to the Sun, and it has a higher metallicity – the abundance of elements with a higher atomic number than helium.[6] It is radiating four times the luminosity of the Sun from its photosphere at an effective temperature of 6,616 K.[4]

  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 c d e f g h Cite error: The named reference Anderson_Francis_2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Houk_Smith-Moore_1978 was invoked but never defined (see the help page).
  4. ^ a b c d e f 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 aguilera-gomez2018 was invoked but never defined (see the help page).
  6. ^ a b c d e f g Cite error: The named reference Fischer2009 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Gáspár_et_al_2016 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Magruder_Ginski_2015 was invoked but never defined (see the help page).