Bonner Durchmusterung +3°3465

light-years

Catalog numbers:
     Gliese (Gl) 688, Henry Draper (HD) 160346, Bonner Durchmusterung (BD) +3°3465, Hipparcos Input Catalog (HIC) 86400, Smithsonian Astrophysical Observatory (SAO) 122610, FK5 Extension (FK5 Ext) 5549
Arity: singular
Right Ascension and Declination: 17h39m16.933s, +3°33'19.05" (epoch 2000.0)
Distance from Sol: 34.9 light-years (10.7 parsecs)
Standard error in distance: 1.3212%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -3.15, -34.7, 2.17
Galactic (X,Y,Z) coordinates in ly: 29.5, 15.7, 10.3
Proper motion: 0.199 arcsec/yr (242.5° from north)
Radial Velocity: 22.4 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 21.3, 1.96, 12.1

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: K3
Luminosity Class: V
Apparent visual magnitude: +6.53
Absolute visual magnitude: +6.38
Visual luminosity: 0.24 x Sol
Color indices: B-V= +0.96, U-B= +0.77, R-I= +0.50
Diameter: 1.23 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.49 A.U.s
Angular size of star in sky in CZ: 1.327767 degrees

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