Luyten Double Star 131

light-years

Catalog numbers:
     Gliese & Jahreiss (GJ) 2036, UGPMF 98, Luyten Double Star (LDS) 131
Arity: binary
Right Ascension and Declination: 4h52m30s, -55°56'0" (epoch 1950.0)
Distance from Sol: 34 light-years (11 parsecs)
Standard error in distance: 18.8034%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 5.6, 18, -28
Galactic (X,Y,Z) coordinates in ly: -2.7, -27, -21
Proper motion: 0.13 arcsec/yr (59.0° 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: +10.66
Combined visual luminosity: 0.005 x Sol
Observed Separation: 95 A.U.s
Source for orbit data: Eggen
As seen from A:
     B would appear as magnitude -9.65
As seen from B:
     A would appear as magnitude -10.67


Component A:
Catalog numbers:
     Bruce Proper Motion (BPM) 17964
Spectral class: M2e
Luminosity Class: V
Apparent visual magnitude: +11.13
Absolute visual magnitude: +11.02
Visual luminosity: 0.003 x Sol
Color indices: B-V= +1.57, U-B= +1.08, R-I= +1.10
Comfort Zone (visual): 0.06 A.U.s


Component B:
Catalog numbers:
     Bruce Proper Motion (BPM) 17965
Apparent visual magnitude: +12.15
Absolute visual magnitude: +12.04
Visual luminosity: 0.001 x Sol
Color indices: B-V= +1.60, U-B= +1.28
Comfort Zone (visual): 0.04 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.