Luyten Two-Tenth 16303

light-years

Catalog numbers:
     Giclas (G) 26-14, Luyten Two-Tenth (LTT) 16303
Arity: binary
Right Ascension and Declination: 21h31m16s, +1°34'18" (epoch 1950.0)
Distance from Sol: 48 light-years (15 parsecs)
Standard error in distance: 10.4439%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 38, -29, 1.3
Galactic (X,Y,Z) coordinates in ly: 22, 33, -27
Proper motion: 0.669 arcsec/yr (180.5° from north)
Source for proper motion: Gliese

What do all these fields mean?


Component A:
Catalog numbers:
     Luyten Half-Second (LHS) 3686
Spectral class: M
Luminosity Class: V
Apparent visual magnitude: +13.35
Absolute visual magnitude: +12.53
Visual luminosity: 0.0008 x Sol
Color indices: B-V= +1.68, R-I= +1.22
Comfort Zone (visual): 0.03 A.U.s


Component B:
Catalog numbers:
     Luyten Half-Second (LHS) 3688, Luyten Palomar (LP) 638-66
Spectral class: M
Luminosity Class: V
Apparent visual magnitude: +14.50
Absolute visual magnitude: +13.68
Visual luminosity: 0.0003 x Sol
Color indices: R-I= +1.29
Comfort Zone (visual): 0.02 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.