Beta Volantis

Beta Volantis
Location of β Volantis.
Observation data
Epoch J2000      Equinox J2000
Constellation Volans
Right ascension 08h 25m 44.19472s[1]
Declination −66° 08′ 12.8050″[1]
Apparent magnitude (V) 3.75[2]
Characteristics
Evolutionary stage horizontal branch[3]
Spectral type K2 III[4]
B−V color index +1.13[2]
Astrometry
Radial velocity (Rv)+27.4±0.7[5] km/s
Proper motion (μ) RA: −35.74±0.10[1] mas/yr
Dec.: −152.22±0.10[1] mas/yr
Parallax (π)30.33 ± 0.10 mas[1]
Distance107.5 ± 0.4 ly
(33.0 ± 0.1 pc)
Absolute magnitude (MV)+1.18[6]
Details
Mass1.62±0.20[7] M☉
Luminosity41±3[7] L☉
Temperature4,546[7] K
Metallicity [Fe/H]−0.01[8] dex
Other designations
β Vol, CD−65°648, GJ 3499, HD 71878, HIP 41312, HR 3347, SAO 250228[9]
Database references
SIMBADdata

Beta Volantis, Latinized from β Volantis, is the brightest star of the southern constellation of Volans. It has an apparent visual magnitude of 3.75,[2] which is sufficiently bright to allow it to be viewed with the naked eye. Based upon an annual parallax shift of 30.33 mas as seen from Earth, its distance can be estimated as 107.5 light years from the Sun. The star is moving away from the Sun with a radial velocity of +27 km/s.[5]

This is a single,[10] orange-hued star with a stellar classification of K2 III,[4] indicating it is an evolved K-type giant star. It is a red clump star,[3] which means it is on the horizontal branch and is generating energy through helium fusion at its core. The stellar mass has been estimated via astroseismology, giving a value of 1.6 times the mass of the Sun.[7] It is radiating about 41 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,546 K.[7]

  1. ^ a b c d e Cite error: The named reference aaa474_2_653 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference Cousins1977 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Paczynski1999 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Gray2003 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  7. ^ a b c d e Cite error: The named reference Stello2008 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Heiter2015 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).