Beta Virginis

light-years
Proper names: Beta Virginis, 5 Virginis, Zawijah
Catalog numbers:
     Gliese (Gl) 449, Henry Draper (HD) 102870, Bonner Durchmusterung (BD) +2°2489, Luyten Half-Second (LHS) 2465, Hipparcos Input Catalog (HIC) 57757, Smithsonian Astrophysical Observatory (SAO) 119076, Fifth Fundamental Catalogue (FK5) 445, Hoffleit Bright Star (HR) 4540
Age: 3700 million years
Source for age: B. Edvardsson et al., "Chemical Evolution of the Galactic Disc", A&AP 275
Heavy element abundance: 160% of Sol
Standard error in heavy element abundance: 5%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: possible spectroscopic binary
Right Ascension and Declination: 11h50m41.722s, +1°45'52.86" (epoch 2000.0)
Distance from Sol: 35.55 light-years (10.90 parsecs)
Standard error in distance: 0.8323%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -35.51, 1.442, 1.095
Galactic (X,Y,Z) coordinates in ly: 0.598, -17.33, 31.04
Proper motion: 0.789 arcsec/yr (110.4° from north)
Radial Velocity: 4.3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 40.38, 3.538, 6.132

What do all these fields mean?


Spectral class: F9
Luminosity Class: V
Apparent visual magnitude: +3.59
Absolute visual magnitude: +3.40
Visual luminosity: 3.792 x Sol
Color indices: B-V= +0.55, U-B= +0.11, R-I= +0.16
Diameter: 1.710 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.947 A.U.s
Angular size of star in sky in CZ: 0.468233 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 4-April-2001.