Bonner Durchmusterung +40°4631

light-years

Catalog numbers:
     Gliese (Gl) 836.8, Bonner Durchmusterung (BD) +40°4631, Hipparcos Input Catalog (HIC) 107346, Vyssotsky McCormick (McC) 71
Arity: singular
Right Ascension and Declination: 21h44m30s, +41°35'51.02" (epoch 2000.0)
Distance from Sol: 66.2 light-years (20.3 parsecs)
Standard error in distance: 2.8205%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 41.1, -27.6, 43.9
Galactic (X,Y,Z) coordinates in ly: 0.069, 65.4, -10.2
Proper motion: 0.08 arcsec/yr (320.0° from north)
Radial Velocity: 9.5 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -0.038, 10.6, 6.14

What do all these fields mean?


Spectral class: K6
Luminosity Class: V
Apparent visual magnitude: +9.65
Absolute visual magnitude: +8.11
Visual luminosity: 0.050 x Sol
Color indices: B-V= +1.34, U-B= +1.20, R-I= +0.59
Comfort Zone (visual): 0.22 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.