Bonner Durchmusterung +31°3767

Catalog numbers:
Gliese (Gl) 767, Henry Draper Extension (HDE) 331161, Bonner Durchmusterung (BD) +31°3767, Giclas (G) 125-31, Hipparcos Input Catalog (HIC) 97292, Smithsonian Astrophysical Observatory (SAO) 68825, Vyssotsky McCormick (McC) 197
Arity: binary
Right Ascension and Declination: 19h46m24.16s, +32°0'58" (epoch 2000.0)
Distance from Sol: 44.0 light-years (13.5 parsecs)
Standard error in distance: 2.6281%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 16.7, -33.4, 23.3
Galactic (X,Y,Z) coordinates in ly: 16.7, 40.6, 2.53
Proper motion: 0.623 arcsec/yr (131.0° from north)
Radial Velocity: -4.4 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 5.89, -4.74, -39.4

What do all these fields mean?

Component A:
Catalog numbers:
Luyten Half-Second (LHS) 3482
Spectral class: M0.5
Luminosity Class: V-VI
Apparent visual magnitude: +10.15
Absolute visual magnitude: +9.50
Visual luminosity: 0.014 x Sol
Color indices: B-V= +1.48, U-B= +1.17, R-I= +0.85
Diameter: 0.54 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.12 A.U.s
Angular size of star in sky in CZ: 2.449487 degrees

Component B:
Catalog numbers:
Luyten Half-Second (LHS) 3483
Proper motion: 0.623 arcsec/yr (131.0° from north)
Radial Velocity: -3.5 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 6.23, -3.91, -39.3
Spectral class: M2
Luminosity Class: V-VI
Apparent visual magnitude: +11.10
Absolute visual magnitude: +10.45
Visual luminosity: 0.0058 x Sol
Color indices: B-V= +1.52
Diameter: 0.44 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.076 A.U.s
Angular size of star in sky in CZ: 3.091315 degrees

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