Eggen/Greenstein white dwarf 250

light-years

Catalog numbers:
     Gliese (Gl) 339.1, Giclas (G) 195-19, Luyten Half-Second (LHS) 262, Eggen/Greenstein white dwarf (EG) 250
Arity: singular
Right Ascension and Declination: 9h12m29s, +53°38'53" (epoch 1950.0)
Distance from Sol: 33.7 light-years (10.3 parsecs)
Standard error in distance: 1.8274%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -14.9, 13.3, 27.2
Galactic (X,Y,Z) coordinates in ly: -23.8, 6.88, 22.9
Proper motion: 1.55 arcsec/yr (223.5° from north)
Source for proper motion: Gliese

What do all these fields mean?


Spectral class: DXP7
Luminosity Class: wd
Apparent visual magnitude: +13.85
Absolute visual magnitude: +13.78
Visual luminosity: 0.00027 x Sol
Color indices: B-V= +0.34, U-B= -0.52
Comfort Zone (visual): 0.016 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.