Bonner Durchmusterung +15°1065

light-years

Catalog numbers:
     Gliese (Gl) 227, Henry Draper (HD) 41593, Bonner Durchmusterung (BD) +15°1065, Hipparcos Input Catalog (HIC) 28954, Smithsonian Astrophysical Observatory (SAO) 95235, AGK3 Reference (AGK3R) 5455
Heavy element abundance: 120% of Sol
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 6h6m40.468s, +15°32'31.23" (epoch 2000.0)
Distance from Sol: 50.4 light-years (15.5 parsecs)
Standard error in distance: 1.3868%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -1.41, 48.5, 13.5
Galactic (X,Y,Z) coordinates in ly: -48.8, -12.5, -1.70
Proper motion: 0.164 arcsec/yr (227.8° from north)
Radial Velocity: -11.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 12.4, 0.38, -11.3

What do all these fields mean?


Spectral class: K0e
Luminosity Class: V
Apparent visual magnitude: +6.78
Absolute visual magnitude: +5.83
Visual luminosity: 0.40 x Sol
Color indices: B-V= +0.81, U-B= +0.42, R-I= +0.26
Diameter: 0.86 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.64 A.U.s
Angular size of star in sky in CZ: 0.720937 degrees

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