AH Velorum

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]

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]
Distance	2,700 ± 100 ly (820 ± 40 pc)
Absolute magnitude (MV)	−2.52[7]
Details
Mass	7.0±0.5[8] M☉
Luminosity	929.98[7] L☉
Surface gravity (log g)	1.66[5] cgs
Temperature	6,102[5] K
Metallicity [Fe/H]	+0.09[5] dex
Rotational velocity (v sin i)	10.0±0.5[9] km/s
Age	50.0±11.0[8] Myr
Other designations
CD−46°3902, HD 68808, HIP 40155, HR 3232, SAO 219587[10]
Database references
SIMBAD	data

Light curve of the classical Cepheid variable AH Velorum recorded by NASA's Transiting Exoplanet Survey Satellite (TESS)

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]