Catalogue Astrographique +3°2528-176

light-years

Catalog numbers:
     Gliese (Gl) 730, Hipparcos Input Catalog (HIC) 92417, Vyssotsky McCormick (McC) 64, Catalogue Astrographique (AC) +3°2528-176
Arity: singular
Right Ascension and Declination: 18h50m0.854s, +3°5'17.49" (epoch 2000.0)
Distance from Sol: 71.1 light-years (21.8 parsecs)
Standard error in distance: 4.1371%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 15.4, -69.3, 3.83
Galactic (X,Y,Z) coordinates in ly: 57.6, 41.6, 1.49
Proper motion: 0.473 arcsec/yr (203.0° from north)
Radial Velocity: -1.4 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 27.5, -40.3, -3.76

What do all these fields mean?


Spectral class: M1.5
Luminosity Class: V
Apparent visual magnitude: +10.73
Absolute visual magnitude: +9.04
Visual luminosity: 0.021 x Sol
Color indices: B-V= +1.47, R-I= +0.79
Comfort Zone (visual): 0.15 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.