Catalogue Astrographique +2°2155-242

light-years

Catalog numbers:
     Gliese (Gl) 748, Luyten Half-Second (LHS) 472, Hipparcos Input Catalog (HIC) 94349, Catalogue Astrographique (AC) +2°2155-242
Arity: singular
Right Ascension and Declination: 19h12m14.597s, +2°53'10.66" (epoch 2000.0)
Distance from Sol: 33.1 light-years (10.1 parsecs)
Standard error in distance: 2.6279%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 10.2, -31.4, 1.67
Galactic (X,Y,Z) coordinates in ly: 25.9, 20.4, -2.20
Proper motion: 1.801 arcsec/yr (105.8° from north)
Radial Velocity: -42.6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -48.9, -15.8, -81.7

What do all these fields mean?


Spectral class: M4
Luminosity Class: V
Apparent visual magnitude: +11.09
Absolute visual magnitude: +11.05
Visual luminosity: 0.0033 x Sol
Color indices: B-V= +1.51, U-B= +1.04, R-I= +1.15
Comfort Zone (visual): 0.057 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.