What do all these fields mean?
Component A:
Catalog numbers:
Henry Draper (HD) 131977, Bonner Durchmusterung (BD) -20°4125, Luyten Half-Second (LHS) 387, Hipparcos Input Catalog (HIC) 73184, Smithsonian Astrophysical Observatory (SAO) 183040
Spectral class: K5e
Luminosity Class: V
Apparent visual magnitude: +5.72
Absolute visual magnitude: +6.87
Visual luminosity: 0.156 x Sol
Color indices: B-V= +1.10, U-B= +1.06, R-I= +0.40
Diameter: 1.143 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.395 A.U.s
Angular size of star in sky in CZ: 1.541755 degrees
Component BC:
NOTE: This star is actually a close-orbiting binary pair. The data below are for both sub-components of the pair combined.
Catalog numbers:
Henry Draper (HD) 131976, Bonner Durchmusterung (BD) -20°4123, Luyten Half-Second (LHS) 386, Hipparcos Input Catalog (HIC) 73182, Smithsonian Astrophysical Observatory (SAO) 183039
Right Ascension and Declination: 14h57m26.41s, -21°24'42.2" (epoch 2000.0)
Celestial (X,Y,Z) coordinates in ly: -12.82, -12.54, -7.032
Galactic (X,Y,Z) coordinates in ly: 15.20, -5.906, 10.25
Proper motion: 1.933 arcsec/yr (149.7° from north)
Radial Velocity: 27.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 47.58, -22.10, -30.89
Spectral class: M1
Luminosity Class: V
Apparent visual magnitude: +8.01
Absolute visual magnitude: +9.15
Visual luminosity: 0.0190 x Sol
Color indices: B-V= +1.50, U-B= +1.22, R-I= +0.89
Diameter: 0.647 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.138 A.U.s
Angular size of star in sky in CZ: 2.501298 degrees