Eggen/Greenstein white dwarf 74

light-years

Catalog numbers:
     Gliese & Jahreiss (GJ) 1140, Giclas (G) 163-27, Luyten Half-Second (LHS) 2333, Eggen/Greenstein white dwarf (EG) 74
Arity: singular
Right Ascension and Declination: 10h55m7s, -7°15'24" (epoch 1950.0)
Distance from Sol: 39.2 light-years (12.0 parsecs)
Standard error in distance: 4.3628%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -37.3, 10.9, -4.95
Galactic (X,Y,Z) coordinates in ly: -4.57, -26.9, 28.0
Proper motion: 0.816 arcsec/yr (274.0° from north)
Source for proper motion: Gliese

What do all these fields mean?


Spectral class: DA6
Luminosity Class: wd
Apparent visual magnitude: +14.31
Absolute visual magnitude: +13.91
Visual luminosity: 0.00024 x Sol
Color indices: B-V= +0.32, U-B= -0.52
Diameter: 0.0084 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.015 A.U.s
Angular size of star in sky in CZ: 0.290958 degrees

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