Zeta Virginis

light-years
Proper names: Zeta Virginis, 79 Virginis
Catalog numbers:
     Henry Draper (HD) 118098, Bonner Durchmusterung (BD) +0°3076, Hipparcos Input Catalog (HIC) 66249, Smithsonian Astrophysical Observatory (SAO) 139420, Fifth Fundamental Catalogue (FK5) 501, Hoffleit Bright Star (HR) 5107, Luyten Two-Tenth (LTT) 5252
Arity: singular
Right Ascension and Declination: 13h34m41.585s, +0°35'45.39" (epoch 2000.0)
Distance from Sol: 73.2 light-years (22.4 parsecs)
Standard error in distance: 1.9802%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -67.0, -29.4, 0.76
Galactic (X,Y,Z) coordinates in ly: 29.8, -19.2, 64.1
Proper motion: 0.287 arcsec/yr (276.0° from north)
Radial Velocity: -13.2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -30.4, -12.7, -4.77

What do all these fields mean?


Spectral class: A3
Luminosity Class: V
Apparent visual magnitude: +3.38
Absolute visual magnitude: +1.62
Visual luminosity: 19.6 x Sol
Color indices: B-V= +0.11, U-B= +0.10, R-I= +0.06
Diameter: 1.76 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 4.42 A.U.s
Angular size of star in sky in CZ: 0.211943 degrees

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