Luyten 891-16

light-years

Arity: binary
Right Ascension and Declination: 8h28m55s, -5°51'48" (epoch 1950.0)
Distance from Sol: 67 light-years (20 parsecs)
Standard error in distance: 14.0351%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -40, 53, -6.8
Galactic (X,Y,Z) coordinates in ly: -40, -49, 22
Proper motion: 0.432 arcsec/yr (259.0° 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: +9.34
Combined visual luminosity: 0.02 x Sol
Observed Separation: 1694 A.U.s
As seen from A:
     B would appear as magnitude -4.62
As seen from B:
     A would appear as magnitude -5.77


Component A:
Catalog numbers:
     Giclas (G) 113-42, Luyten (L) 891-16, Luyten Two-Tenth (LTT) 3154, Luyten Palomar (LP) 665-21
Spectral class: M1.5
Luminosity Class: V
Apparent visual magnitude: +11.21
Absolute visual magnitude: +9.66
Visual luminosity: 0.01 x Sol
Color indices: B-V= +1.41, R-I= +0.84
Comfort Zone (visual): 0.1 A.U.s


Component B:
Catalog numbers:
     Giclas (G) 113-43, Luyten Two-Tenth (LTT) 3155, Luyten (L) 891-15, Luyten Palomar (LP) 665-22
Right Ascension and Declination: 8h29m0s, -5°52'0" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: -40, 53, -6.8
Galactic (X,Y,Z) coordinates in ly: -40, -49, 22
Proper motion: 0.432 arcsec/yr (259.0° from north)
Source for proper motion: Gliese
Spectral class: M3
Luminosity Class: V
Apparent visual magnitude: +12.36
Absolute visual magnitude: +10.81
Visual luminosity: 0.004 x Sol
Color indices: B-V= +1.47, R-I= +1.03
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.