Bonner Durchmusterung -3°1061

light-years

Catalog numbers:
     Gliese (Gl) 200, Henry Draper (HD) 34673, Bonner Durchmusterung (BD) -3°1061, Giclas (G) 84-45, Hipparcos Input Catalog (HIC) 24819, Smithsonian Astrophysical Observatory (SAO) 131977, Aitken Double Star (ADS) 3900, UGPMF 109
Arity: binary
Right Ascension and Declination: 5h19m12.669s, -3°4'26.07" (epoch 2000.0)
Distance from Sol: 55.0 light-years (16.9 parsecs)
Standard error in distance: 2.7555%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 9.73, 54.1, -2.95
Galactic (X,Y,Z) coordinates in ly: -46.4, -21.8, -20.0
Proper motion: 0.734 arcsec/yr (80.0° from north)
Radial Velocity: 86.5 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -83.5, -59.5, 20.5

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +6.54
Combined visual luminosity: 0.21 x Sol
Observed Separation: 82.6 A.U.s
Year of separation observation: 1900
As seen from A:
     B would appear as magnitude -11.42
As seen from B:
     A would appear as magnitude -15.42

Data for A and B's orbit, take 2:
Observed Separation: 45.5 A.U.s
Year of separation observation: 1960
As seen from A:
     B would appear as magnitude -12.72
As seen from B:
     A would appear as magnitude -16.72


Component A:
Catalog numbers:
     Luyten Half-Second (LHS) 1754
Spectral class: K3
Luminosity Class: V
Apparent visual magnitude: +7.70
Absolute visual magnitude: +6.56
Visual luminosity: 0.21 x Sol
Diameter: 0.75 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.45 A.U.s
Angular size of star in sky in CZ: 0.880800 degrees


Component B:
Catalog numbers:
     Luyten Half-Second (LHS) 1755
Spectral class: M2
Luminosity Class: V
Apparent visual magnitude: +11.70
Absolute visual magnitude: +10.56
Visual luminosity: 0.0052 x Sol
Diameter: 0.37 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.072 A.U.s
Angular size of star in sky in CZ: 2.741936 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 4-April-2001.