Bonner Durchmusterung +29°1664

light-years

Catalog numbers:
     Gliese (Gl) 295, Henry Draper (HD) 65583, Bonner Durchmusterung (BD) +29°1664, Luyten Half-Second (LHS) 242, Hipparcos Input Catalog (HIC) 39157, Smithsonian Astrophysical Observatory (SAO) 79856, AGK3 Reference (AGK3R) 7198
Age: 7400 million years
Source for age: Don C. Barry, "Chromospheric Age Dependence of…", APJ 334
Heavy element abundance: 25% of Sol
Standard error in heavy element abundance: 2%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 8h0m32.159s, +29°12'44.19" (epoch 2000.0)
Distance from Sol: 54.8 light-years (16.8 parsecs)
Standard error in distance: 1.2772%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -24.0, 41.4, 26.7
Galactic (X,Y,Z) coordinates in ly: -47.4, -10.6, 25.3
Proper motion: 1.181 arcsec/yr (187.8° from north)
Radial Velocity: 14.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -12.5, -89.8, -29.0

What do all these fields mean?


Spectral class: G8
Luminosity Class: V
Apparent visual magnitude: +6.99
Absolute visual magnitude: +5.87
Visual luminosity: 0.39 x Sol
Color indices: B-V= +0.71, U-B= +0.18, R-I= +0.28
Diameter: 0.86 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.63 A.U.s
Angular size of star in sky in CZ: 0.732469 degrees

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