What do all these fields mean?
Data for A and B's orbit around one other:
Combined absolute visual magnitude: +1.90
Combined visual luminosity: 15.2 x Sol
Period: 45.69 years
Semimajor Axis: 20.4 A.U.s
Eccentricity: 0.74
Periastron distance: 5.31 A.U.s
Apastron distance: 35.6 A.U.s
Year in which periastron occurs: 1951.14
Source for orbit data: P. Baize
As seen from A:
At periastron, B would appear as magnitude -25.21
At apastron, B would appear as magnitude -21.08
As seen from B:
At periastron, A would appear as magnitude -25.37
At apastron, A would appear as magnitude -21.24
Data for (A-B) and C's orbit around one other:
Combined absolute visual magnitude: +1.84
Combined visual luminosity: 16.0 x Sol
Observed Separation: 216 A.U.s
Year of separation observation: 1959
As seen from (A-B):
C would appear as magnitude -14.87
As seen from C:
(A-B) would appear as magnitude -18.00
Component A:
Catalog numbers:
Henry Draper (HD) 144070, Hoffleit Bright Star (HR) 5978
Spectral class: F6
Luminosity Class: IV-V
Apparent visual magnitude: +4.84
Absolute visual magnitude: +2.57
Visual luminosity: 8.13 x Sol
Diameter: 1.5 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 2.85 A.U.s
Angular size of star in sky in CZ: 0.280370 degrees
Component B:
Catalog numbers:
Henry Draper (HD) 144069, Hipparcos Input Catalog (HIC) 78727, Hoffleit Bright Star (HR) 5977
Right Ascension and Declination: 16h4m21.6s, -11°22'25.1" (epoch 2000.0)
Celestial (X,Y,Z) coordinates in ly: -43.9, -79.5, -18.3
Galactic (X,Y,Z) coordinates in ly: 81.1, 0.57, 44.6
Proper motion: 0.072 arcsec/yr (241.7° from north)
Radial Velocity: -32.2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -29.9, -9.23, -12.4
Spectral class: F6
Luminosity Class: IV-V
Apparent visual magnitude: +5.00
Absolute visual magnitude: +2.73
Visual luminosity: 7.02 x Sol
Diameter: 3.05 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 2.65 A.U.s
Angular size of star in sky in CZ: 0.613907 degrees
Component C:
Right Ascension and Declination: 16h1m37s, -11°14'6" (epoch 1950.0)
Celestial (X,Y,Z) coordinates in ly: -44.9, -79.0, -18.0
Galactic (X,Y,Z) coordinates in ly: 80.7, 0.038, 45.5
Proper motion: 0.07 arcsec/yr (254.3° from north)
Radial Velocity: -31.3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -29.8, -7.85, -10.8
Spectral class: G8
Luminosity Class: V
Apparent visual magnitude: +7.30
Absolute visual magnitude: +5.03
Visual luminosity: 0.84 x Sol
Color indices: B-V= +0.75
Diameter: 0.9 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.92 A.U.s
Angular size of star in sky in CZ: 0.522283 degrees