Bonner Durchmusterung +25°449

light-years

Catalog numbers:
     Gliese (Gl) 112, Henry Draper (HD) 17190, Bonner Durchmusterung (BD) +25°449 , Hipparcos Input Catalog (HIC) 12926, Smithsonian Astrophysical Observatory (SAO) 75559
Arity: singular
Right Ascension and Declination: 2h46m15.25s, +25°38'59.3" (epoch 2000.0)
Distance from Sol: 83.7 light-years (25.7 parsecs)
Standard error in distance: 2.8194%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 56.5, 50.1, 36.2
Galactic (X,Y,Z) coordinates in ly: -65.0, 32.3, -41.8
Proper motion: 0.286 arcsec/yr (121.1° from north)
Radial Velocity: 14.5 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -26.5, -25.7, -7.76

What do all these fields mean?


Spectral class: K1
Luminosity Class: IV?
Apparent visual magnitude: +7.85
Absolute visual magnitude: +5.80
Visual luminosity: 0.42 x Sol
Color indices: B-V= +0.84
Diameter: 0.79 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: 0.653073 degrees

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