McCook & Sion White Dwarf 1247+553

light-years

Catalog numbers:
     McCook & Sion White Dwarf (WD) 1247+553, Giclas white Dwarf (GD) 319
Arity: singular
Right Ascension and Declination: 12h47m52s, +55°22'18" (epoch 1950.0)
Distance from Sol: 49 light-years (15 parsecs)
Standard error in distance: 15.3846%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -27, -5.8, 41
Galactic (X,Y,Z) coordinates in ly: -13, 19, 44
Proper motion: 0.046 arcsec/yr (267.5° from north)
Source for proper motion: Gliese

What do all these fields mean?


Spectral class: DA4
Luminosity Class: wd
Apparent visual magnitude: +12.31
Absolute visual magnitude: +11.41
Visual luminosity: 0.002 x Sol
Color indices: B-V= +0.03, U-B= -0.93
Comfort Zone (visual): 0.05 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.