Iota Virginis

light-years
Proper names: Iota Virginis, 99 Virginis
Catalog numbers:
     Woolley (Wo) 9473, Henry Draper (HD) 124850, Bonner Durchmusterung (BD) -5°3843, Hipparcos Input Catalog (HIC) 69701, Smithsonian Astrophysical Observatory (SAO) 139824, Fifth Fundamental Catalogue (FK5) 525, Hoffleit Bright Star (HR) 5338, Luyten Two-Tenth (LTT) 5603, New Suspected Variable (NSV) 6604
Age: 3000 million years
Source for age: B. Edvardsson et al., "Chemical Evolution of the Galactic Disc", A&AP 275
Heavy element abundance: 87% of Sol
Standard error in heavy element abundance: 3%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 14h16m0.918s, -6°0'2.04" (epoch 2000.0)
Distance from Sol: 69.8 light-years (21.4 parsecs)
Standard error in distance: 1.8273%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -57.5, -38.8, -7.29
Galactic (X,Y,Z) coordinates in ly: 41.3, -16.3, 53.9
Proper motion: 0.436 arcsec/yr (181.1° from north)
Radial Velocity: 14.6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 26.8, -36.0, -12.5

What do all these fields mean?


Spectral class: F6
Luminosity Class: III
Apparent visual magnitude: +4.08
Absolute visual magnitude: +2.43
Visual luminosity: 9.31 x Sol
Color indices: B-V= +0.52, U-B= +0.04, R-I= +0.16
Diameter: 2.69 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 3.05 A.U.s
Angular size of star in sky in CZ: 0.469986 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 12-May-2001.