Bonner Durchmusterung +76°785

light-years

Catalog numbers:
     Gliese (Gl) 786, Henry Draper (HD) 193202, Bonner Durchmusterung (BD) +76°785, Giclas (G) 261-19, Luyten Half-Second (LHS) 3527, Hipparcos Input Catalog (HIC) 99427, Smithsonian Astrophysical Observatory (SAO) 9679, New Suspected Variable (NSV) 12939
Arity: singular
Right Ascension and Declination: 20h10m52.334s, +77°14'20.11" (epoch 2000.0)
Distance from Sol: 54.8 light-years (16.8 parsecs)
Standard error in distance: 1.195%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 6.54, -10.2, 53.4
Galactic (X,Y,Z) coordinates in ly: -17.4, 47.6, 20.8
Proper motion: 0.517 arcsec/yr (6.7° from north)
Radial Velocity: -1.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -34.4, -19.1, 12.1

What do all these fields mean?


Spectral class: M0
Luminosity Class: V
Apparent visual magnitude: +8.88
Absolute visual magnitude: +7.76
Visual luminosity: 0.069 x Sol
Color indices: B-V= +1.33, U-B= +1.28
Diameter: 0.68 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.26 A.U.s
Angular size of star in sky in CZ: 1.382582 degrees

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