What do all these fields mean?
Data for A and B's orbit around one other:
Combined absolute visual magnitude: +0.78
Combined visual luminosity: 42.5 x Sol
Observed Separation: 1723 A.U.s
As seen from A:
B would appear as magnitude -3.71
As seen from B:
A would appear as magnitude -14.61
Component A:
NOTE: This star is actually a close-orbiting binary pair. The data below are for both sub-components of the pair combined.
Spectral class: K0
Luminosity Class: III
Apparent visual magnitude: +2.50
Absolute visual magnitude: +0.78
Visual luminosity: 42.5 x Sol
Color indices: B-V= +1.03, U-B= +0.87
Diameter: 15.2 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 6.52 A.U.s
Angular size of star in sky in CZ: 1.242405 degrees
Component B:
Catalog numbers:
Luyten Two-Tenth (LTT) 16072
Right Ascension and Declination: 20h44m5s, +33°46'48" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: 39.3, -45.2, 40.1
Galactic (X,Y,Z) coordinates in ly: 17.4, 69.6, -7.15
Proper motion: 0.48 arcsec/yr (47.5° from north)
Radial Velocity: -10.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -51.0, 0.79, -6.70
Spectral class: M4
Luminosity Class: V
Apparent visual magnitude: +13.40
Absolute visual magnitude: +11.68
Visual luminosity: 0.0019 x Sol
Color indices: B-V= +1.66, R-I= +1.11
Diameter: 0.36 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.043 A.U.s
Angular size of star in sky in CZ: 4.455552 degrees