What do all these fields mean?
Data for A and B's orbit around one other:
Combined absolute visual magnitude: +4.51
Combined visual luminosity: 1.367 x Sol
Period: 76 years
Semimajor Axis: 21.41 A.U.s
Eccentricity: 0.16
Periastron distance: 17.99 A.U.s
Apastron distance: 24.84 A.U.s
Year in which periastron occurs: 1950.4
Source for orbit data: P. Baize
As seen from A:
At periastron, B would appear as magnitude -17.98
At apastron, B would appear as magnitude -17.28
As seen from B:
At periastron, A would appear as magnitude -20.70
At apastron, A would appear as magnitude -20.00
Data for (A-B) and C's orbit around one other:
Combined absolute visual magnitude: +4.50
Combined visual luminosity: 1.386 x Sol
Observed Separation: 10397 A.U.s
As seen from (A-B):
C would appear as magnitude -2.33
As seen from C:
(A-B) would appear as magnitude -6.98
Component A:
NOTE: This star is actually a close-orbiting binary pair. The data below are for both sub-components of the pair combined.
Catalog numbers:
Luyten Two-Tenth (LTT) 15223
Spectral class: G0
Luminosity Class: Va
Apparent visual magnitude: +5.34
Absolute visual magnitude: +4.60
Visual luminosity: 1.264 x Sol
Color indices: B-V= +0.56, U-B= +0.07
Diameter: 1.06 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.124 A.U.s
Angular size of star in sky in CZ: 0.502640 degrees
Component B:
Catalog numbers:
Luyten Two-Tenth (LTT) 15223
Spectral class: K3
Luminosity Class: V
Apparent visual magnitude: +8.06
Absolute visual magnitude: +7.32
Visual luminosity: 0.103 x Sol
Color indices: B-V= +1.10, U-B= +1.00
Diameter: 1.287 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.321 A.U.s
Angular size of star in sky in CZ: 2.135827 degrees
Component C:
Spectral class: M1
Luminosity Class: V
Apparent visual magnitude: +9.90
Absolute visual magnitude: +9.16
Visual luminosity: 0.0190 x Sol
Comfort Zone (visual): 0.138 A.U.s