Luyten 270-137

light-years

Catalog numbers:
     Luyten (L) 270-137, Luyten Two-Tenth (LTT) 6999, Bruce Proper Motion (BPM) 24960
Arity: singular
Right Ascension and Declination: 17h33m12s, -54°24'0" (epoch 1950.0)
Distance from Sol: 68 light-years (21 parsecs)
Standard error in distance: 15.7895%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -4.6, -39, -55
Galactic (X,Y,Z) coordinates in ly: 61, -26, -14
Proper motion: 0.446 arcsec/yr (193.0° from north)
Source for proper motion: Gliese

What do all these fields mean?


Spectral class: DA8
Luminosity Class: wd
Apparent visual magnitude: +15.80
Absolute visual magnitude: +14.21
Visual luminosity: 0.0002 x Sol
Color indices: B-V= +0.46, U-B= -0.45
Comfort Zone (visual): 0.01 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.