Bonner Durchmusterung +10°3724

Catalog numbers:
Gliese (Gl) 734, Henry Draper Extension (HDE) 230017, Bonner Durchmusterung (BD) +10°3724, Hipparcos Input Catalog (HIC) 92836, Vyssotsky McCormick (McC) 187
Arity: binary
Right Ascension and Declination: 18h54m53.8s, +10°58'56" (epoch 2000.0)
Distance from Sol: 53 light-years (16 parsecs)
Standard error in distance: 10.5187%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 12, -50, 10
Galactic (X,Y,Z) coordinates in ly: 38, 36, 3.4
Proper motion: 0.12 arcsec/yr (95.0° from north)
Radial Velocity: -26.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -21, -15, -10

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +8.33
Combined visual luminosity: 0.04 x Sol
Observed Separation: 84 A.U.s
Year of separation observation: 1961
As seen from A:
B would appear as magnitude -10.69
As seen from B:
A would appear as magnitude -13.55

Component A:
Spectral class: M0
Luminosity Class: V
Apparent visual magnitude: +9.44
Absolute visual magnitude: +8.41
Visual luminosity: 0.04 x Sol
Color indices: B-V= +1.36, U-B= +1.30
Diameter: 0.69 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.2 A.U.s
Angular size of star in sky in CZ: 1.891442 degrees

Component B:
Apparent visual magnitude: +12.30
Absolute visual magnitude: +11.27
Visual luminosity: 0.003 x Sol
Comfort Zone (visual): 0.05 A.U.s

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