Bonner Durchmusterung +23°528

light-years

Catalog numbers:
     Woolley (Wo) 9131, Henry Draper (HD) 23585, Bonner Durchmusterung (BD) +23°528 , Humason & Zwicky (HZ) 1284, TR 365
Arity: singular
Right Ascension and Declination: 3h44m6s, +23°50'30" (epoch 1950.0)
Distance from Sol: 67 light-years (21 parsecs)
Standard error in distance: 25.9146%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 34, 51, 27
Galactic (X,Y,Z) coordinates in ly: -60, 14, -27
Proper motion: 0.044 arcsec/yr (158.1° from north)
Radial Velocity: 4.3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -4.0, -3.0, -3.4

What do all these fields mean?


Spectral class: F0
Luminosity Class: V
Apparent visual magnitude: +8.38
Absolute visual magnitude: +6.81
Visual luminosity: 0.2 x Sol
Color indices: B-V= +0.29
Diameter: 0.02 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.4 A.U.s
Angular size of star in sky in CZ: 0.025535 degrees

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