Giclas 204-58

light-years

Arity: binary
Right Ascension and Declination: 18h16m25s, +38°46'12" (epoch 1950.0)
Distance from Sol: 37.1 light-years (11.4 parsecs)
Standard error in distance: 3.9301%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 2.07, -28.8, 23.2
Galactic (X,Y,Z) coordinates in ly: 13.8, 31.3, 14.3
Proper motion: 1.091 arcsec/yr (197.8° 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: +11.38
Combined visual luminosity: 0.0024 x Sol
Observed Separation: 96.6 A.U.s
As seen from A:
     B would appear as magnitude -8.39
As seen from B:
     A would appear as magnitude -10.05


Component A:
Catalog numbers:
     Giclas (G) 204-58, Luyten Half-Second (LHS) 462
Spectral class: M
Luminosity Class: V-VI
Apparent visual magnitude: +11.87
Absolute visual magnitude: +11.59
Visual luminosity: 0.0020 x Sol
Color indices: B-V= +1.58, R-I= +1.07
Comfort Zone (visual): 0.045 A.U.s


Component B:
Catalog numbers:
     Giclas (G) 204-57, Luyten Half-Second (LHS) 461
Right Ascension and Declination: 18h16m24s, +38°46'12" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: 2.07, -28.8, 23.2
Galactic (X,Y,Z) coordinates in ly: 13.8, 31.3, 14.3
Spectral class: M
Luminosity Class: V-VI
Apparent visual magnitude: +13.53
Absolute visual magnitude: +13.25
Visual luminosity: 0.00044 x Sol
Color indices: B-V= +1.77, R-I= +1.24
Comfort Zone (visual): 0.021 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.