Luyten 845-15

light-years

Arity: binary
Right Ascension and Declination: 17h14m57s, -11°46'36" (epoch 1950.0)
Distance from Sol: 68 light-years (21 parsecs)
Standard error in distance: 14.2857%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -13, -65, -14
Galactic (X,Y,Z) coordinates in ly: 65, 13, 17
Proper motion: 0.298 arcsec/yr (180.0° 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: +10.52
Combined visual luminosity: 0.005 x Sol
Observed Separation: 625 A.U.s
As seen from A:
     B would appear as magnitude -6.28
As seen from B:
     A would appear as magnitude -6.36


Component A:
Catalog numbers:
     Luyten (L) 845-15, Luyten Two-Tenth (LTT) 6883, Luyten Palomar (LP) 747-20
Spectral class: M3
Luminosity Class: V-VI
Apparent visual magnitude: +12.83
Absolute visual magnitude: +11.24
Visual luminosity: 0.003 x Sol
Color indices: B-V= +1.49, R-I= +1.15
Comfort Zone (visual): 0.05 A.U.s


Component B:
Catalog numbers:
     Luyten (L) 845-16, Luyten Two-Tenth (LTT) 6882, Luyten Palomar (LP) 747-19
Right Ascension and Declination: 17h14m56s, -11°46'6" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: -13, -65, -14
Galactic (X,Y,Z) coordinates in ly: 65, 13, 17
Spectral class: M3
Luminosity Class: V-VI
Apparent visual magnitude: +12.91
Absolute visual magnitude: +11.32
Visual luminosity: 0.003 x Sol
Color indices: B-V= +1.49, R-I= +1.12
Comfort Zone (visual): 0.05 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.