Bonner Durchmusterung +38°3095

light-years

Catalog numbers:
     Gliese (Gl) 706, Henry Draper (HD) 166620, Bonner Durchmusterung (BD) +38°3095, Giclas (G) 205-5, Luyten Half-Second (LHS) 3363, Hipparcos Input Catalog (HIC) 88972, Smithsonian Astrophysical Observatory (SAO) 66700, Hoffleit Bright Star (HR) 6806, New Suspected Variable (NSV) 10316
Heavy element abundance: 57% of Sol
Standard error in heavy element abundance: 11%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 18h9m37.437s, +38°27'28.54" (epoch 2000.0)
Distance from Sol: 36.20 light-years (11.10 parsecs)
Standard error in distance: 0.5957%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 1.190, -28.32, 22.51
Galactic (X,Y,Z) coordinates in ly: 13.75, 30.10, 14.66
Proper motion: 0.557 arcsec/yr (215.3° from north)
Radial Velocity: -19.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 16.48, -30.84, 0.714

What do all these fields mean?


Spectral class: K2
Luminosity Class: V
Apparent visual magnitude: +6.40
Absolute visual magnitude: +6.17
Visual luminosity: 0.296 x Sol
Color indices: B-V= +0.87, U-B= +0.59, R-I= +0.34
Diameter: 0.859 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.544 A.U.s
Angular size of star in sky in CZ: 0.841140 degrees

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