Gliese & Jahreiss 1179

light-years

Catalog numbers:
     Gliese & Jahreiss (GJ) 1179
Arity: binary
Right Ascension and Declination: 13h45m58s, +23°51'36" (epoch 1950.0)
Distance from Sol: 39.1 light-years (12.0 parsecs)
Standard error in distance: 2.7972%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -32.0, -16.0, 15.8
Galactic (X,Y,Z) coordinates in ly: 8.43, 3.19, 38.1
Proper motion: 1.484 arcsec/yr (275.6° 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: +14.33
Combined visual luminosity: 0.00016 x Sol
Observed Separation: 2182 A.U.s
As seen from A:
     B would appear as magnitude +0.38
As seen from B:
     A would appear as magnitude +0.05


Component A:
Catalog numbers:
     Luyten Half-Second (LHS) 362
Spectral class: M4
Luminosity Class: V
Apparent visual magnitude: +15.32
Absolute visual magnitude: +14.93
Visual luminosity: 0.000093 x Sol
Color indices: B-V= +1.96, R-I= +1.58
Comfort Zone (visual): 0.0097 A.U.s


Component B:
Catalog numbers:
     Luyten Half-Second (LHS) 361, Eggen/Greenstein white dwarf (EG) 438
Right Ascension and Declination: 13h45m48s, +23°49'36" (epoch 1950.0)
Distance from Sol: 39.1 light-years (12.0 parsecs)
Standard error in distance: 2.7972%
Celestial (X,Y,Z) coordinates in ly: -32.1, -15.9, 15.8
Galactic (X,Y,Z) coordinates in ly: 8.43, 3.16, 38.1
Spectral class: DC9
Luminosity Class: wd
Apparent visual magnitude: +15.65
Absolute visual magnitude: +15.25
Visual luminosity: 0.000069 x Sol
Color indices: B-V= +1.10, U-B= +0.47, R-I= +0.42
Comfort Zone (visual): 0.0083 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.