Bonner Durchmusterung +71°850

light-years

Catalog numbers:
     Gliese (Gl) 689, Henry Draper (HD) 160964, Bonner Durchmusterung (BD) +71°850, Hipparcos Input Catalog (HIC) 86141, Smithsonian Astrophysical Observatory (SAO) 8855, Vyssotsky McCormick (McC) 323
Arity: singular
Right Ascension and Declination: 17h36m13.522s, +71°52'42.11" (epoch 2000.0)
Distance from Sol: 62.0 light-years (19.0 parsecs)
Standard error in distance: 1.3696%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -2.00, -19.2, 59.0
Galactic (X,Y,Z) coordinates in ly: -11.6, 51.6, 32.5
Proper motion: 0.104 arcsec/yr (111.4° from north)
Radial Velocity: -23.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 8.04, -14.7, -19.5

What do all these fields mean?


Spectral class: K8
Luminosity Class: V
Apparent visual magnitude: +8.61
Absolute visual magnitude: +7.22
Visual luminosity: 0.11 x Sol
Color indices: B-V= +1.10, U-B= +1.04, R-I= +0.43
Comfort Zone (visual): 0.34 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.