Bonner Durchmusterung +27°4120

light-years

Catalog numbers:
     Gliese (Gl) 835, Bonner Durchmusterung (BD) +27°4120, Giclas (G) 188-9, Hipparcos Input Catalog (HIC) 106811, Vyssotsky McCormick (McC) 203
Arity: singular
Right Ascension and Declination: 21h38m0.35s, +27°43'26.4" (epoch 2000.0)
Distance from Sol: 42.9 light-years (13.1 parsecs)
Standard error in distance: 3.2188%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 30.9, -22.0, 19.9
Galactic (X,Y,Z) coordinates in ly: 7.51, 40.0, -13.5
Proper motion: 0.43 arcsec/yr (93.0° from north)
Radial Velocity: -13.3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -21.5, -15.1, -14.4

What do all these fields mean?


Spectral class: M0e
Luminosity Class: V
Apparent visual magnitude: +9.83
Absolute visual magnitude: +9.24
Visual luminosity: 0.018 x Sol
Color indices: B-V= +1.50, U-B= +1.26, R-I= +0.81
Comfort Zone (visual): 0.13 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.