Luyten 710-30

light-years

Catalog numbers:
     Gliese (Gl) 781.3, Eggen/Greenstein white dwarf (EG) 137, Luyten (L) 710-30, Luyten Two-Tenth (LTT) 7983, Luyten Palomar (LP) 870-43
Arity: singular
Right Ascension and Declination: 20h7m21s, -21°55'23" (epoch 1950.0)
Distance from Sol: 55 light-years (17 parsecs)
Standard error in distance: 21.3333%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 27, -44, -21
Galactic (X,Y,Z) coordinates in ly: 46, 18, -25
Proper motion: 0.311 arcsec/yr (158.0° from north)
Radial Velocity: 35 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 29, -8.7, -31

What do all these fields mean?


Spectral class: DA6
Luminosity Class: wd
Apparent visual magnitude: +14.44
Absolute visual magnitude: +13.29
Visual luminosity: 0.0004 x Sol
Color indices: B-V= +0.19, U-B= -0.70
Comfort Zone (visual): 0.02 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.