Gamma Librae

light-years
Proper names: Gamma Librae, 38 Librae
Catalog numbers:
     Henry Draper (HD) 138905, Bonner Durchmusterung (BD) -14°4237, Hipparcos Input Catalog (HIC) 76333, Smithsonian Astrophysical Observatory (SAO) 159370, Fifth Fundamental Catalogue (FK5) 577, Hoffleit Bright Star (HR) 5787
Heavy element abundance: 40% of Sol
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 15h35m31.579s, -14°47'22.4" (epoch 2000.0)
Distance from Sol: 152 light-years (46.7 parsecs)
Standard error in distance: 4.0323%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -86.8, -119, -38.9
Galactic (X,Y,Z) coordinates in ly: 128, -18.1, 79.8
Proper motion: 0.062 arcsec/yr (86.2° from north)
Radial Velocity: -28.2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -17.7, 13.1, -22.3

What do all these fields mean?


Spectral class: G8.5
Luminosity Class: III
Apparent visual magnitude: +3.91
Absolute visual magnitude: +0.56
Visual luminosity: 51.8 x Sol
Color indices: B-V= +1.00, U-B= +0.74
Diameter: 10.8 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 7.20 A.U.s
Angular size of star in sky in CZ: 0.798950 degrees

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