Bonner Durchmusterung +7°3180

light-years

Catalog numbers:
     Gliese (Gl) 626, Henry Draper (HD) 148467, Bonner Durchmusterung (BD) +7°3180, Hipparcos Input Catalog (HIC) 80644, Smithsonian Astrophysical Observatory (SAO) 121619, Vyssotsky McCormick (McC) 766
Arity: singular
Right Ascension and Declination: 16h27m56.937s, +7°18'20.48" (epoch 2000.0)
Distance from Sol: 57.8 light-years (17.7 parsecs)
Standard error in distance: 2.2688%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -22.4, -52.8, 7.35
Galactic (X,Y,Z) coordinates in ly: 44.0, 18.2, 32.8
Proper motion: 0.346 arcsec/yr (224.5° from north)
Radial Velocity: -35 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -20.2, -38.6, -13.2

What do all these fields mean?


Spectral class: K8
Luminosity Class: V
Apparent visual magnitude: +8.83
Absolute visual magnitude: +7.59
Visual luminosity: 0.080 x Sol
Color indices: B-V= +1.23, U-B= +1.22, R-I= +0.50
Diameter: 0.73 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.28 A.U.s
Angular size of star in sky in CZ: 1.375553 degrees

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