Bonner Durchmusterung -11°916

light-years

Catalog numbers:
     Gliese (Gl) 173, Bonner Durchmusterung (BD) -11°916, Vyssotsky McCormick (McC) 106
Arity: singular
Right Ascension and Declination: 4h37m41.86s, -11°2'20.32" (epoch 2000.0)
Distance from Sol: 34.7 light-years (10.6 parsecs)
Standard error in distance: 8.2927%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 12.0, 31.9, -6.64
Galactic (X,Y,Z) coordinates in ly: -25.4, -13.4, -19.4
Proper motion: 0.318 arcsec/yr (227.0° from north)
Radial Velocity: -7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 14.9, 2.50, -8.76

What do all these fields mean?


Spectral class: M1
Luminosity Class: V
Apparent visual magnitude: +10.36
Absolute visual magnitude: +10.23
Visual luminosity: 0.0071 x Sol
Color indices: B-V= +1.50, U-B= +1.17, R-I= +0.93
Comfort Zone (visual): 0.084 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.