Bonner Durchmusterung +18°339

light-years

Catalog numbers:
     Gliese (Gl) 106, Henry Draper (HD) 16909, Bonner Durchmusterung (BD) +18°339 , Hipparcos Input Catalog (HIC) 12709, Smithsonian Astrophysical Observatory (SAO) 93072
Arity: singular
Right Ascension and Declination: 2h43m20.924s, +19°25'45.59" (epoch 2000.0)
Distance from Sol: 60.5 light-years (18.6 parsecs)
Standard error in distance: 2.3024%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 43.2, 37.3, 20.1
Galactic (X,Y,Z) coordinates in ly: -45.2, 19.5, -35.2
Proper motion: 0.432 arcsec/yr (90.7° from north)
Radial Velocity: 29.2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -45.1, -16.1, -1.18

What do all these fields mean?


NOTE: This star is actually a close-orbiting binary pair. The data below are for both sub-components of the pair combined.
Spectral class: K4
Luminosity Class: V
Apparent visual magnitude: +8.27
Absolute visual magnitude: +6.93
Visual luminosity: 0.15 x Sol
Color indices: B-V= +1.07
Diameter: 0.77 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.38 A.U.s
Angular size of star in sky in CZ: 1.068654 degrees

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