Luyten 399-68

light-years

Catalog numbers:
     Gliese (Gl) 480.1, Luyten Half-Second (LHS) 340, Hipparcos Input Catalog (HIC) 61874, Luyten (L) 399-68
Arity: singular
Right Ascension and Declination: 12h40m46.33s, -43°33'58.6" (epoch 2000.0)
Distance from Sol: 25.0 light-years (7.66 parsecs)
Standard error in distance: 2.8797%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -17.8, -3.20, -17.2
Galactic (X,Y,Z) coordinates in ly: 12.3, -20.2, 8.14
Proper motion: 1.047 arcsec/yr (311.7° from north)
Radial Velocity: -44 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -50.8, 27.0, 8.67

What do all these fields mean?


Spectral class: M3.5
Luminosity Class: V-VI
Apparent visual magnitude: +12.24
Absolute visual magnitude: +12.82
Visual luminosity: 0.00065 x Sol
Color indices: B-V= +1.73, U-B= +1.39, R-I= +1.14
Comfort Zone (visual): 0.025 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.