Beta Comae Berenices

light-years
Proper names: Beta Comae Berenices, 43 Comae Berenices
Catalog numbers:
     Gliese (Gl) 502, Henry Draper (HD) 114710, Bonner Durchmusterung (BD) +28°2193, Luyten Half-Second (LHS) 348, Hipparcos Input Catalog (HIC) 64394, Smithsonian Astrophysical Observatory (SAO) 82706, Fifth Fundamental Catalogue (FK5) 492, Hoffleit Bright Star (HR) 4983
Age: 4400 million years
Source for age: B. Edvardsson et al., "Chemical Evolution of the Galactic Disc", A&AP 275
Heavy element abundance: 146% of Sol
Standard error in heavy element abundance: 9%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 13h11m52.395s, +27°52'41.4" (epoch 2000.0)
Distance from Sol: 29.86 light-years (9.155 parsecs)
Standard error in distance: 0.6548%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -25.11, -8.143, 13.96
Galactic (X,Y,Z) coordinates in ly: 2.042, 1.692, 29.74
Proper motion: 1.189 arcsec/yr (317.7° from north)
Radial Velocity: 5.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -50.02, 11.13, 7.911

What do all these fields mean?


Spectral class: G0
Luminosity Class: V
Apparent visual magnitude: +4.26
Absolute visual magnitude: +4.45
Visual luminosity: 1.447 x Sol
Color indices: B-V= +0.57, U-B= +0.07, R-I= +0.21
Mass: 1.05 x Sol
Diameter: 1.191 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.203 A.U.s
Orbital period in CZ: 1.28765 years
Tidal index in CZ: 0.603119
Angular size of star in sky in CZ: 0.527600 degrees

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