Bonner Durchmusterung +37°3812

light-years

Catalog numbers:
     Henry Draper (HD) 192020, Bonner Durchmusterung (BD) +37°3812
Arity: singular
Right Ascension and Declination: 20h9m36s, +38°14'54" (epoch 1950.0)
Distance from Sol: 79.6 light-years (24.4 parsecs)
Standard error in distance: 8.8889%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 33.5, -52.7, 49.2
Galactic (X,Y,Z) coordinates in ly: 20.0, 76.9, 3.56
Proper motion: 0.122 arcsec/yr (16.3° from north)
Radial Velocity: -6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -14.6, -2.59, 3.89

What do all these fields mean?


Spectral class: G8
Luminosity Class: V
Apparent visual magnitude: +7.95
Absolute visual magnitude: +6.01
Visual luminosity: 0.34 x Sol
Color indices: B-V= +0.86, U-B= +0.57
Comfort Zone (visual): 0.59 A.U.s

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