Catalogue Astrographique +47°256-150

light-years

Catalog numbers:
     Gliese (Gl) 272, Giclas (G) 107-65, Vyssotsky McCormick (McC) 493, Catalogue Astrographique (AC) +47°256-150
Arity: singular
Right Ascension and Declination: 7h19m37s, +46°11'18" (epoch 1950.0)
Distance from Sol: 55.7 light-years (17.1 parsecs)
Standard error in distance: 9.9846%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -13.1, 36.2, 40.2
Galactic (X,Y,Z) coordinates in ly: -50.2, 7.12, 23.0
Proper motion: 0.28 arcsec/yr (215.0° from north)
Radial Velocity: -30.3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 18.2, -17.3, -28.3

What do all these fields mean?


Spectral class: M2
Luminosity Class: V
Apparent visual magnitude: +10.53
Absolute visual magnitude: +9.37
Visual luminosity: 0.016 x Sol
Color indices: B-V= +1.46, R-I= +0.84
Comfort Zone (visual): 0.12 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.