Eggen/Greenstein white dwarf 7

light-years

Catalog numbers:
     Gliese & Jahreiss (GJ) 1027, Eggen/Greenstein white dwarf (EG) 7
Arity: singular
Right Ascension and Declination: 1h1m14s, +4°48'17" (epoch 1950.0)
Distance from Sol: 69.7 light-years (21.4 parsecs)
Standard error in distance: 7.5099%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 67.0, 18.3, 5.84
Galactic (X,Y,Z) coordinates in ly: -23.3, 29.1, -58.9
Proper motion: 0.388 arcsec/yr (52.0° from north)
Radial Velocity: 61 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -57.0, 25.2, -37.2

What do all these fields mean?


Spectral class: DA6
Luminosity Class: wd
Apparent visual magnitude: +13.96
Absolute visual magnitude: +12.31
Visual luminosity: 0.0010 x Sol
Color indices: B-V= +0.31
Comfort Zone (visual): 0.032 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.