Eggen/Greenstein white dwarf 329

light-years

Catalog numbers:
     Gliese & Jahreiss (GJ) 1205, Eggen/Greenstein white dwarf (EG) 329, Luyten Palomar (LP) 137-43, Giclas white Dwarf (GD) 356
Arity: singular
Right Ascension and Declination: 16h39m50s, +53°47'0" (epoch 1950.0)
Distance from Sol: 67.8 light-years (20.8 parsecs)
Standard error in distance: 6.7829%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -13.7, -37.6, 54.7
Galactic (X,Y,Z) coordinates in ly: 7.32, 50.9, 44.2
Proper motion: 0.236 arcsec/yr (212.0° from north)
Source for proper motion: Gliese

What do all these fields mean?


Spectral class: DC7
Luminosity Class: wd
Apparent visual magnitude: +15.06
Absolute visual magnitude: +13.47
Visual luminosity: 0.00036 x Sol
Color indices: B-V= +0.33, U-B= -0.52
Diameter: 0.009 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.019 A.U.s
Angular size of star in sky in CZ: 0.254267 degrees

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