Bonner Durchmusterung +10°1050

light-years

Catalog numbers:
     Gliese (Gl) 230, Henry Draper (HD) 42807, Bonner Durchmusterung (BD) +10°1050, Hipparcos Input Catalog (HIC) 29525, Smithsonian Astrophysical Observatory (SAO) 95394, Hoffleit Bright Star (HR) 2208
Age: 200 million years
Source for age: Don C. Barry, "Chromospheric Age Dependence of…", APJ 334
Arity: possible spectroscopic binary
Right Ascension and Declination: 6h13m12.517s, +10°37'37.95" (epoch 2000.0)
Distance from Sol: 59.1 light-years (18.1 parsecs)
Standard error in distance: 1.7094%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -3.35, 58.0, 10.9
Galactic (X,Y,Z) coordinates in ly: -55.6, -19.6, -3.01
Proper motion: 0.302 arcsec/yr (164.2° from north)
Radial Velocity: 6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 3.05, -25.7, -6.04

What do all these fields mean?


Spectral class: G2
Luminosity Class: V
Apparent visual magnitude: +6.44
Absolute visual magnitude: +5.15
Visual luminosity: 0.76 x Sol
Color indices: B-V= +0.67, U-B= +0.15, R-I= +0.22
Diameter: 1.01 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.87 A.U.s
Angular size of star in sky in CZ: 0.619911 degrees

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