Luyten 396-7

light-years

Catalog numbers:
     Gliese (Gl) 431, Luyten Half-Second (LHS) 2423, Hipparcos Input Catalog (HIC) 56244, Luyten (L) 396-7
Arity: singular
Right Ascension and Declination: 11h31m46.637s, -41°2'45.31" (epoch 2000.0)
Distance from Sol: 34.2 light-years (10.5 parsecs)
Standard error in distance: 2.6415%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -25.6, 3.17, -22.4
Galactic (X,Y,Z) coordinates in ly: 9.80, -30.7, 11.3
Proper motion: 0.717 arcsec/yr (290.1° from north)
Radial Velocity: -78 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -56.4, 59.7, -24.6

What do all these fields mean?


Spectral class: M3.5
Luminosity Class: V-VI
Apparent visual magnitude: +11.55
Absolute visual magnitude: +11.45
Visual luminosity: 0.0023 x Sol
Color indices: B-V= +1.54, U-B= +0.97, R-I= +1.16
Comfort Zone (visual): 0.048 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.