Catalogue Astrographique +41°726-154

light-years

Catalog numbers:
     Gliese (Gl) 671, Giclas (G) 181-39, Luyten Half-Second (LHS) 3281, Hipparcos Input Catalog (HIC) 84790, Catalogue Astrographique (AC) +41°726-154
Arity: singular
Right Ascension and Declination: 17h19m52.717s, +41°42'50.89" (epoch 2000.0)
Distance from Sol: 40.3 light-years (12.3 parsecs)
Standard error in distance: 2.139%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -5.24, -29.6, 26.8
Galactic (X,Y,Z) coordinates in ly: 13.2, 30.7, 22.5
Proper motion: 0.863 arcsec/yr (159.8° from north)
Radial Velocity: -18.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 39.9, -19.6, -30.5

What do all these fields mean?


Spectral class: M3
Luminosity Class: V-VI
Apparent visual magnitude: +11.37
Absolute visual magnitude: +10.91
Visual luminosity: 0.0038 x Sol
Color indices: B-V= +1.56, R-I= +1.04
Comfort Zone (visual): 0.061 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.