Bonner Durchmusterung +18°1214

light-years

Catalog numbers:
     Gliese (Gl) 233, Henry Draper (HD) 45088, Bonner Durchmusterung (BD) +18°1214, Hipparcos Input Catalog (HIC) 30630, Smithsonian Astrophysical Observatory (SAO) 95677, Aitken Double Star (ADS) 5054
Arity: binary
Right Ascension and Declination: 6h26m10.227s, +18°45'24.64" (epoch 2000.0)
Distance from Sol: 47.8 light-years (14.7 parsecs)
Standard error in distance: 1.5873%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -5.16, 45.0, 15.4
Galactic (X,Y,Z) coordinates in ly: -46.4, -11.4, 3.08
Proper motion: 0.21 arcsec/yr (214.6° from north)
Radial Velocity: -8.4 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 8.94, -4.79, -13.4

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +5.92
Combined visual luminosity: 0.37 x Sol
Observed Separation: 19.1 A.U.s
As seen from A:
     B would appear as magnitude -12.20
As seen from B:
     A would appear as magnitude -19.25


Component A:
Spectral class: K2e
Luminosity Class: V
Apparent visual magnitude: +6.75
Absolute visual magnitude: +5.92
Visual luminosity: 0.37 x Sol
Diameter: 0.82 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.61 A.U.s
Angular size of star in sky in CZ: 0.716517 degrees


Component B:
Spectral class: M
Luminosity Class: V
Apparent visual magnitude: +13.80
Absolute visual magnitude: +12.97
Visual luminosity: 0.00057 x Sol
Diameter: 0.23 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.024 A.U.s
Angular size of star in sky in CZ: 5.157152 degrees

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