Luyten 49-19

light-years

Catalog numbers:
     Gliese (Gl) 877, Luyten Half-Second (LHS) 531, Hipparcos Input Catalog (HIC) 113229, Luyten (L) 49-19
Arity: singular
Right Ascension and Declination: 22h55m45.6s, -75°27'30.2" (epoch 2000.0)
Distance from Sol: 28.1 light-years (8.62 parsecs)
Standard error in distance: 1.1334%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 6.78, -1.95, -27.2
Galactic (X,Y,Z) coordinates in ly: 14.4, -16.0, -18.0
Proper motion: 1.42 arcsec/yr (225.6° from north)
Radial Velocity: -86 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -10.6, 30.3, 98.7

What do all these fields mean?


Spectral class: K
Luminosity Class: V-VI
Apparent visual magnitude: +10.42
Absolute visual magnitude: +10.74
Visual luminosity: 0.0044 x Sol
Color indices: B-V= +1.49, U-B= +1.05, R-I= +1.06
Diameter: 0.33 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.066 A.U.s
Angular size of star in sky in CZ: 2.654129 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 4-April-2001.