10 Canum Venaticorum

light-years
Proper names: 10 Canum Venaticorum
Catalog numbers:
     Gliese (Gl) 484, Henry Draper (HD) 110897, Bonner Durchmusterung (BD) +40°2570, Hipparcos Input Catalog (HIC) 62207, Smithsonian Astrophysical Observatory (SAO) 63177, AGK3 Reference (AGK3R) 11418, Hoffleit Bright Star (HR) 4845
Age: 4900 million years
Source for age: Don C. Barry, "Chromospheric Age Dependence of…", APJ 334
Heavy element abundance: 44% of Sol
Standard error in heavy element abundance: 11%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Points of interest:
     B. Edvardsson et al. derived a ripe old age of over 13 thousand-million years for this star, which is probably too old, considering that an average G0 star can only remain on the main sequence for about 10 thousand-million years.

Right Ascension and Declination: 12h44m59.393s, +39°16'44.46" (epoch 2000.0)
Distance from Sol: 56.7 light-years (17.4 parsecs)
Standard error in distance: 1.0995%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -43.0, -8.55, 35.9
Galactic (X,Y,Z) coordinates in ly: -6.99, 9.36, 55.4
Proper motion: 0.392 arcsec/yr (291.6° from north)
Radial Velocity: 80.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -41.5, 7.02, 76.1

What do all these fields mean?


Spectral class: G0
Luminosity Class: V
Apparent visual magnitude: +5.96
Absolute visual magnitude: +4.76
Visual luminosity: 1.08 x Sol
Color indices: B-V= +0.55, U-B= -0.03, R-I= +0.22
Diameter: 0.97 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.04 A.U.s
Angular size of star in sky in CZ: 0.496965 degrees

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