Luyten Palomar 639-1

light-years

Catalog numbers:
     Luyten Half-Second (LHS) 516, Luyten Palomar (LP) 639-1
Arity: singular
Right Ascension and Declination: 21h54m16s, -2°8'54" (epoch 1950.0)
Distance from Sol: 43.5 light-years (13.3 parsecs)
Standard error in distance: 4.0921%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 37.1, -22.7, -1.63
Galactic (X,Y,Z) coordinates in ly: 18.1, 27.3, -28.7
Proper motion: 1.426 arcsec/yr (64.2° from north)
Source for proper motion: Gliese

What do all these fields mean?


Spectral class: M5
Luminosity Class: V
Apparent visual magnitude: +14.64
Absolute visual magnitude: +14.02
Visual luminosity: 0.00022 x Sol
Color indices: B-V= +1.76, R-I= +1.42
Comfort Zone (visual): 0.015 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.