Luyten 1143-65

light-years

Arity: binary
Right Ascension and Declination: 20h42m5s, +8°43'0" (epoch 1950.0)
Distance from Sol: 63 light-years (19 parsecs)
Standard error in distance: 11.8644%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 40, -47, 9.5
Galactic (X,Y,Z) coordinates in ly: 34, 48, -22
Proper motion: 0.253 arcsec/yr (50.0° 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: +9.56
Combined visual luminosity: 0.01 x Sol
Observed Separation: 288 A.U.s
As seen from A:
     B would appear as magnitude -8.15
As seen from B:
     A would appear as magnitude -9.42


Component A:
Catalog numbers:
     Luyten (L) 1143-65, Luyten Two-Tenth (LTT) 16064, Luyten Palomar (LP) 576-40
Spectral class: K-M
Apparent visual magnitude: +11.27
Absolute visual magnitude: +9.85
Visual luminosity: 0.010 x Sol
Color indices: R-I= +0.84
Comfort Zone (visual): 0.10 A.U.s


Component B:
Catalog numbers:
     Luyten Two-Tenth (LTT) 16065, Luyten (L) 1143-66, Luyten Palomar (LP) 576-39
Right Ascension and Declination: 20h42m4s, +8°43'12" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: 40, -47, 9.5
Galactic (X,Y,Z) coordinates in ly: 34, 48, -22
Spectral class: M
Apparent visual magnitude: +12.54
Absolute visual magnitude: +11.12
Visual luminosity: 0.003 x Sol
Color indices: R-I= +1.15
Comfort Zone (visual): 0.06 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.