AH Velorum

AH Velorum
Observation data
Epoch J2000      Equinox J2000
Constellation Vela
Right ascension 08h 11m 59.96702s[1]
Declination −46° 38′ 39.6561″[1]
Apparent magnitude (V) 5.70[2] (5.50 – 5.89)[3]
Characteristics
Spectral type F7 Ib-II[4]
B−V color index 0.59[5]
Variable type δ Cep[3]
Astrometry
Radial velocity (Rv)+26.0±2.9[6] km/s
Proper motion (μ) RA: −4.405[1] mas/yr
Dec.: +6.768[1] mas/yr
Parallax (π)1.2170 ± 0.0570 mas[1]
Distance2,700 ± 100 ly
(820 ± 40 pc)
Absolute magnitude (MV)−2.52[7]
Details
Mass7.0±0.5[8] M☉
Luminosity929.98[7] L☉
Surface gravity (log g)1.66[5] cgs
Temperature6,102[5] K
Metallicity [Fe/H]+0.09[5] dex
Rotational velocity (v sin i)10.0±0.5[9] km/s
Age50.0±11.0[8] Myr
Other designations
CD−46°3902, HD 68808, HIP 40155, HR 3232, SAO 219587[10]
Database references
SIMBADdata
Light curve of the classical Cepheid variable AH Velorum recorded by NASA's Transiting Exoplanet Survey Satellite (TESS)

AH Velorum is a single,[11] yellow-white hued star in the constellation Vela. It has an average apparent visual magnitude of 5.70,[2] which makes it bright enough to be dimly visible to the naked eye in good seeing conditions. The distance to this star can be estimated from its annual parallax shift of 1.217 mas,[1] which yields a separation of roughly 2,700 light years. It is moving further away from the Earth with a heliocentric radial velocity of +26 km/s.[6]

It is a bright giant/supergiant of spectral type F7 Ib-II.[12] The star is around 50[8] million years old with a projected rotational velocity of 10 km/s.[9] It has 7[8] times the mass of the Sun and is radiating 930[7] times the Sun's luminosity from its photosphere at an effective temperature of 6,102 K.[5]

A classical Cepheid variable,[3] its apparent magnitude ranges from 5.50 to 5.89 over 4.227171 days.[12] It pulsates in the first overtone, with a fundamental period of 6.04 days.[2]

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference evans2016 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference gcvs was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  5. ^ a b c d e Cite error: The named reference luck2014 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  7. ^ a b c 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 Tetzlaff2011 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference AmmlerVonEiff2012 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  12. ^ a b Cite error: The named reference AAVSOAH was invoked but never defined (see the help page).