Bonner Durchmusterung +24°543

light-years

Catalog numbers:
     Woolley (Wo) 9126, Henry Draper (HD) 23232, Bonner Durchmusterung (BD) +24°543 , Humason & Zwicky (HZ) 316, TR 109
Arity: singular
Right Ascension and Declination: 3h41m21s, +24°43'6" (epoch 1950.0)
Distance from Sol: 63 light-years (19 parsecs)
Standard error in distance: 26.7425%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 33, 47, 26
Galactic (X,Y,Z) coordinates in ly: -56, 15, -25
Proper motion: 0.023 arcsec/yr (241.7° from north)
Radial Velocity: 2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -0.8, 1.0, -2.6

What do all these fields mean?


Spectral class: K2
Luminosity Class: V?
Apparent visual magnitude: +8.85
Absolute visual magnitude: +7.41
Visual luminosity: 0.09 x Sol
Color indices: B-V= +1.71
Diameter: 0.71 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.3 A.U.s
Angular size of star in sky in CZ: 1.230010 degrees

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