Luyten 347-14


Catalog numbers:
     Gliese (Gl) 754, Luyten Half-Second (LHS) 60, Luyten (L) 347-14
Arity: singular
Right Ascension and Declination: 19h17m7s, -45°36'42" (epoch 1950.0)
Distance from Sol: 18.6 light-years (5.69 parsecs)
Standard error in distance: 4.5627%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 4.29, -12.3, -13.3
Galactic (X,Y,Z) coordinates in ly: 16.8, -2.24, -7.52
Proper motion: 2.945 arcsec/yr (167.3° from north)
Radial Velocity: 16 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -9.83, -69.3, -40.8

What do all these fields mean?

Spectral class: M4.5
Luminosity Class: V-VI
Apparent visual magnitude: +12.23
Absolute visual magnitude: +13.45
Visual luminosity: 0.00036 x Sol
Color indices: B-V= +1.68, U-B= +1.22, R-I= +1.33
Mass: 0.26 x Sol
Diameter: 0.24 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.019 A.U.s
Orbital period in CZ: 1.87853 days
Tidal index in CZ: 37804.5
Angular size of star in sky in CZ: 6.727994 degrees

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