Theta Volantis

Theta Volantis, Latinized from θ Volantis, is a solitary^[9][10] star in the southern constellation of Volans. Based upon parallax measurements, is approximately 240 light years from the Sun. It has an apparent visual magnitude of 5.19,^[2] which is bright enough to be faintly visible to the naked eye.

θ Volantis

Location of θ Volantis
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Volans
Right ascension	08h 39m 05.16145s[1]
Declination	−70° 23′ 12.2826″[1]
Apparent magnitude (V)	5.19[2]
Characteristics
Spectral type	A0 V[3]
U−B color index	−0.03[4]
B−V color index	+0.01[4]
Astrometry
Radial velocity (Rv)	13.00±4.2[2] km/s
Proper motion (μ)	RA: +19.15[1] mas/yr Dec.: −38.28[1] mas/yr
Parallax (π)	13.58±0.20 mas[1]
Distance	240 ± 4 ly (74 ± 1 pc)
Absolute magnitude (MV)	+1.21[5]
Details
Mass	2.3[6] M☉
Luminosity	37[7] L☉
Surface gravity (log g)	4.08[6] cgs
Temperature	8,753[7] K
Rotational velocity (v sin i)	98[6] km/s
Age	185−364[6] Myr
Other designations
θ Vol, CPD−69°946, FK5 2683, HD 74405, HIP 42425, HR 3460, SAO 256535[8]
Database references
SIMBAD	data

Theta Volantis is an A-type main sequence star with a stellar classification of A0 V^[3] and a mass around 2.3 times that of the Sun. It is a young star with an estimated age of a few hundred million years, and is spinning rapidly with a projected rotational velocity of 98 km/s.^[6] Theta Volantis shines 37 times as brightly as the Sun, with an effective temperature of 8,753 K in its outer atmosphere.^[7]

The star has two optical companions: a magnitude 15.0 star at an angular separation of 22.10″ along a position angle of 58°, and a magnitude 10.64 star at an angular separation of 41.3″ along a position angle of 105° (both as of 2000).^[11]