What do all these fields mean?
Data for A and B's orbit around one other:
Combined absolute visual magnitude: +11.58
Combined visual luminosity: 0.0020 x Sol
Period: 44.6 years
Semimajor Axis: 9.67 A.U.s
Eccentricity: 0.41
Periastron distance: 5.70 A.U.s
Apastron distance: 13.6 A.U.s
Year in which periastron occurs: 1925.64
Source for orbit data: S.L. Lippincott
As seen from A:
At periastron, B would appear as magnitude -14.51
At apastron, B would appear as magnitude -12.61
As seen from B:
At periastron, A would appear as magnitude -15.96
At apastron, A would appear as magnitude -14.06
Component A:
Catalog numbers:
Luyten Half-Second (LHS) 3814
Spectral class: M3n
Luminosity Class: V
Apparent visual magnitude: +9.85
Absolute visual magnitude: +11.84
Visual luminosity: 0.0016 x Sol
Color indices: B-V= +1.62, U-B= +1.23
Mass: 0.26 x Sol
Diameter: 0.35 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.040 A.U.s
Orbital period in CZ: 5.74569 days
Tidal index in CZ: 4041.07
Angular size of star in sky in CZ: 4.656506 degrees
Component B:
Proper names: DO Cephei
Catalog numbers:
Luyten Half-Second (LHS) 3815
Proper motion: 0.943 arcsec/yr (245.4° from north)
Radial Velocity: -31.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 25.4, -26.0, 1.89
Spectral class: M4
Luminosity Class: V
Apparent visual magnitude: +11.30
Absolute visual magnitude: +13.29
Visual luminosity: 0.00042 x Sol
Variable type: UV Ceti flare star (eruptive variable)
Color indices: B-V= +1.80, U-B= +1.30
Mass: 0.14 x Sol
Diameter: 0.24 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.021 A.U.s
Orbital period in CZ: 2.8757 days
Tidal index in CZ: 16132.2
Angular size of star in sky in CZ: 6.226121 degrees