Luyten Double Star 3768

light-years

Catalog numbers:
     Luyten Double Star (LDS) 3768
Arity: binary
Right Ascension and Declination: 7h55m41s, +15°38'30" (epoch 1950.0)
Distance from Sol: 68.0 light-years (20.8 parsecs)
Standard error in distance: 9.434%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -31.6, 57.3, 18.3
Galactic (X,Y,Z) coordinates in ly: -56.7, -27.7, 25.1
Proper motion: 0.115 arcsec/yr (218.0° from north)
Source for proper motion: Gliese

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +12.24
Combined visual luminosity: 0.0011 x Sol
Observed Separation: 396 A.U.s
As seen from A:
     B would appear as magnitude -5.09
As seen from B:
     A would appear as magnitude -5.94


Component A:
Spectral class: M
Luminosity Class: V-VI
Apparent visual magnitude: +14.24
Absolute visual magnitude: +12.65
Visual luminosity: 0.00076 x Sol
Color indices: R-I= +1.25
Comfort Zone (visual): 0.028 A.U.s


Component B:
Right Ascension and Declination: 7h55m40s, +15°38'18" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: -31.6, 57.3, 18.3
Galactic (X,Y,Z) coordinates in ly: -56.7, -27.7, 25.1
Spectral class: M
Luminosity Class: V-VI
Apparent visual magnitude: +15.09
Absolute visual magnitude: +13.50
Visual luminosity: 0.00035 x Sol
Color indices: R-I= +1.39
Comfort Zone (visual): 0.019 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.