Bonner Durchmusterung +31°1781

light-years

Catalog numbers:
     Gliese (Gl) 301.1, Bonner Durchmusterung (BD) +31°1781, Luyten Half-Second (LHS) 1998, Hipparcos Input Catalog (HIC) 40671, Smithsonian Astrophysical Observatory (SAO) 60712
Arity: singular
Right Ascension and Declination: 8h18m10.767s, +30°36'3" (epoch 2000.0)
Distance from Sol: 73.6 light-years (22.6 parsecs)
Standard error in distance: 2.8697%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -35.9, 52.2, 37.4
Galactic (X,Y,Z) coordinates in ly: -61.2, -13.3, 38.6
Proper motion: 0.872 arcsec/yr (199.0° from north)
Radial Velocity: 11.6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -20.2, -83.2, -38.7

What do all these fields mean?


Spectral class: K4
Luminosity Class: V
Apparent visual magnitude: +8.85
Absolute visual magnitude: +7.09
Visual luminosity: 0.13 x Sol
Color indices: B-V= +1.14, U-B= +1.11, R-I= +0.42
Comfort Zone (visual): 0.36 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.