Eta Volantis

Eta Volantis, Latinized from η Volantis, is a single star^[12] in the southern constellation of Volans. It has an apparent visual magnitude of 5.28,^[13] which is bright enough to be seen with the naked eye as a dim, white-hued star. Based upon parallax measurements, it is approximately 387 light years from the Sun. The star is moving further away from the Sun with a radial velocity of 20 km/s.^[4]

η Volantis

Location of η Volantis.
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Volans
Right ascension	08h 22m 04.45155s[1]
Declination	−73° 23′ 59.9258″[1]
Apparent magnitude (V)	5.28±0.01
Characteristics
Spectral type	A0/1 IV/V[2]
B−V color index	+0.01[3]
Astrometry
Radial velocity (Rv)	+20.0±3.7[4] km/s
Proper motion (μ)	RA: −29.432[1] mas/yr Dec.: +29.926[1] mas/yr
Parallax (π)	8.4310±0.0887 mas[1]
Distance	387 ± 4 ly (119 ± 1 pc)
Absolute magnitude (MV)	−0.06[5]
Details
Mass	2.73±0.08[6] M☉
Radius	3.78±0.12[7] R☉
Luminosity	84[8] L☉
Surface gravity (log g)	3.81±0.04[6] cgs
Temperature	9,789±427[9] K
Rotational velocity (v sin i)	214[10] km/s
Age	347[6] Myr
Other designations
η Vol, CPD−72°694, FK5 2653, HD 71576, HIP 41003, HR 3334, SAO 256505[11]
Database references
SIMBAD	data

This is an A-type star with a stellar classification of A0/1 IV/V,^[2] displaying blended spectrum that shows aspects of a main sequence star and a subgiant. Stellar evolution models from Zorec and Royer (2012) place it near the main sequence turnoff, having completed 90.7% of its time on the main sequence. The star is estimated to be 347 million years old^[6] and is spinning rapidly with a projected rotational velocity of 214 km/s.^[10] It has 2.73 times the mass of the Sun^[6] and 3.43 times the Sun's radius.^[7] Eta Volantis is radiating 84^[8] times the luminosity of the Sun from its photosphere at an effective temperature of 9,789 K.^[9]

Eta Volantis has two 12th magnitude optical companions at angular separations of 26.8 and 48.1 arcseconds.^[14]