Wolf 457

light-years

Catalog numbers:
     Gliese (Gl) 492, Luyten Half-Second (LHS) 2661, Eggen/Greenstein white dwarf (EG) 95, Wolf 457
Arity: singular
Right Ascension and Declination: 12h57m38s, +3°45'30" (epoch 1950.0)
Distance from Sol: 51.0 light-years (15.6 parsecs)
Standard error in distance: 6.5789%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -49.3, -12.7, 3.35
Galactic (X,Y,Z) coordinates in ly: 12.8, -16.1, 46.7
Proper motion: 0.963 arcsec/yr (207.5° from north)
Source for proper motion: Gliese

What do all these fields mean?


Spectral class: DC9
Luminosity Class: wd
Apparent visual magnitude: +15.79
Absolute visual magnitude: +14.82
Visual luminosity: 0.00010 x Sol
Color indices: B-V= +0.64, U-B= -0.10
Diameter: 0.0096 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.010 A.U.s
Angular size of star in sky in CZ: 0.504299 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 4-April-2001.