HD 86081

HIP 86081 / Bibhā
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Sextans
Right ascension 09h 56m 05.91853s[1]
Declination −03° 48′ 30.3233″[1]
Apparent magnitude (V) 8.73[2]
Characteristics
Spectral type G1V[3]
B−V color index 0.664±0.026[2]
Astrometry
Radial velocity (Rv)+30.88±0.27[2] km/s
Proper motion (μ) RA: −67.001±0.079[1] mas/yr
Dec.: 15.999±0.076[1] mas/yr
Parallax (π)9.5928 ± 0.0509 mas[1]
Distance340 ± 2 ly
(104.2 ± 0.6 pc)
Absolute magnitude (MV)3.86[2]
Details[4]
Mass1.21±0.28 M
Radius1.46±0.14 R
Luminosity2.941[1] L
Surface gravity (log g)4.25[5] cgs
Temperature5,973[1] K
Metallicity [Fe/H]+0.22 dex
Rotational velocity (v sin i)5.0[5] km/s
Age3.61±0.86 Gyr
Other designations
Bibhā, BD−03 2815, HD 86081, HIP 48711, SAO 137236[6]
Database references
SIMBADdata

HD 86081 is a yellow-hued star in the equatorial constellation of Sextans. It has the proper name Bibhā, the Bengali form of a Sanskrit word meaning a bright beam of light.[7] The star is named after the physicist Bibha Chowdhuri (1913-1991), who studied cosmic rays.[citation needed] This name was suggested in the 2019 NameExoWorlds campaign.[7] With an apparent visual magnitude of 8.73,[2] this star is too dim to be viewed with the naked eye but can be seen with a small telescope. It is located at a distance of approximately 340 light years from the Sun based on parallax, and is drifting further away with a radial velocity of +31 km/s.[2]

  1. ^ a b c d e f g Cite error: The named reference Gaia DR2 was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference Anderson_Francis_2012 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Houk_Swift_1999 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Ment_et_al_2018 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Gonzalez_et_al_2010 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. ^ a b Cite error: The named reference IAU was invoked but never defined (see the help page).