Upsilon Virginis

υ Virginis

Template:Location mark Location of υ Virginis (circled)
Observation data Epoch J2000      Equinox J2000
Constellation	Virgo
Right ascension	Template:RA
Declination	Template:DEC
Apparent magnitude (V)	5.27
Characteristics
Evolutionary stage	giant
Spectral type	G9 III
U−B Template:Engvar	+0.81
B−V Template:Engvar	1.023
Astrometry
Radial velocity (Rv)	Template:Val km/s
Proper motion (μ)	RA: −118.809 mas/yr Dec.: −71.508 mas/yr
Parallax (π)	12.1137±0.1301 mas
Distance	Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)	0.4
Details
Mass	1.72 Template:Solar mass
Radius	12 Template:Solar radius
Luminosity	64.6 Template:Solar luminosity
Surface gravity (log g)	2.7 cgs
Temperature	4,753 K
Metallicity [Fe/H]	−0.22 dex
Rotational velocity (v sin i)	3.4 km/s
Age	377 Myr
Metallicity [Fe/H]	{{{metal_fe2}}} dex
Other designations
υ Vir, 102 Virginis, BD−01°2938, FK5 3134, HD 125454, HIP 70012, HR 5366, SAO 139866
Database references
SIMBAD	data

Upsilon Virginis (υ Vir, υ Virginis) is a single star in the zodiac constellation of Virgo. It has an apparent visual magnitude of 5.25, making it faintly visible to the naked eye. According to the Bortle scale, it is visible from backlit suburban skies at night. Based upon a measured annual parallax shift of Template:Val, it is located roughly Template:Convert from the Sun. If the star were at a distance of Template:Convert, it would have a magnitude of +0.4 and be the third-brightest star in the night sky.

This star has a stellar classification of G9 III, which indicates it is an evolved G-type giant star. It has an estimated 172% of the Sun's mass and has expanded to 12 times the radius of the Sun, from which it is shining with 64.6 times the solar luminosity. The effective temperature of the star's outer atmosphere is 4,753 K. Based upon its motion through space, there is a 66% chance of being a member of the Hercules stream and a 27% chance it is a thin disk star.