Bonner Durchmusterung +18°683

light-years

Catalog numbers:
     Gliese (Gl) 176, Bonner Durchmusterung (BD) +18°683, Luyten Half-Second (LHS) 196, Vyssotsky McCormick (McC) 107
Arity: possible spectroscopic binary
Right Ascension and Declination: 4h42m55.81s, +18°57'30.1" (epoch 2000.0)
Distance from Sol: 30.4 light-years (9.31 parsecs)
Standard error in distance: 2.8933%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 9.48, 27.1, 9.87
Galactic (X,Y,Z) coordinates in ly: -29.1, -0.20, -8.79
Proper motion: 1.286 arcsec/yr (146.7° from north)
Radial Velocity: 26 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -23.2, -56.7, -11.7

What do all these fields mean?


Spectral class: M2.5e
Luminosity Class: V
Apparent visual magnitude: +9.98
Absolute visual magnitude: +10.14
Visual luminosity: 0.0077 x Sol
Color indices: B-V= +1.52, U-B= +1.18, R-I= +0.96
Comfort Zone (visual): 0.088 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.