Cordoba Durchmusterung -34°8280

Catalog numbers:
Gliese & Jahreiss (GJ) 1161, Henry Draper (HD) 109524, Cordoba Durchmusterung (CD) -34°8280, Hipparcos Input Catalog (HIC) 61451, Smithsonian Astrophysical Observatory (SAO) 203614, UGPMF 301, Luyten Double Star (LDS) 413
Arity: binary
Right Ascension and Declination: 12h35m33.56s, -34°52'54.2" (epoch 2000.0)
Distance from Sol: 70.6 light-years (21.6 parsecs)
Standard error in distance: 1.9321%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -57.2, -8.95, -40.4
Galactic (X,Y,Z) coordinates in ly: 31.2, -54.2, 32.8
Proper motion: 0.228 arcsec/yr (250.5° 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: +6.16
Combined visual luminosity: 0.30 x Sol
Observed Separation: 2100 A.U.s
As seen from A:
B would appear as magnitude -4.73
As seen from B:
A would appear as magnitude -8.77

Component A:
Catalog numbers:
Luyten Two-Tenth (LTT) 4787
Spectral class: K4
Luminosity Class: V
Apparent visual magnitude: +7.87
Absolute visual magnitude: +6.19
Visual luminosity: 0.29 x Sol
Color indices: B-V= +1.04, U-B= +0.83, R-I= +0.40
Comfort Zone (visual): 0.54 A.U.s

Component B:
Catalog numbers:
Luyten Two-Tenth (LTT) 4788
Right Ascension and Declination: 12h32m58s, -34°37'42" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: -57.5, -8.33, -40.1
Galactic (X,Y,Z) coordinates in ly: 30.5, -54.5, 33.0
Spectral class: M
Luminosity Class: V
Apparent visual magnitude: +11.91
Absolute visual magnitude: +10.23
Visual luminosity: 0.0070 x Sol
Color indices: B-V= +1.60, U-B= +1.28, R-I= +1.01
Comfort Zone (visual): 0.084 A.U.s

Data for this star system were most recently updated on 4-April-2001.