Bonner Durchmusterung +27°688

light-years

Catalog numbers:
     Gliese (Gl) 176.2, Henry Draper (HD) 29883, Bonner Durchmusterung (BD) +27°688, Hipparcos Input Catalog (HIC) 21988, Smithsonian Astrophysical Observatory (SAO) 76728, AGK3 Reference (AGK3R) 4183, Woolley (Wo) 9166
Arity: singular
Right Ascension and Declination: 4h43m35.442s, +27°41'14.51" (epoch 2000.0)
Distance from Sol: 72.9 light-years (22.4 parsecs)
Standard error in distance: 2.1649%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 21.1, 61.0, 33.9
Galactic (X,Y,Z) coordinates in ly: -71.0, 8.15, -14.2
Proper motion: 0.271 arcsec/yr (167.6° from north)
Radial Velocity: 17.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -17.1, -23.8, -16.1

What do all these fields mean?


Spectral class: K3
Luminosity Class: V
Apparent visual magnitude: +8.00
Absolute visual magnitude: +6.26
Visual luminosity: 0.27 x Sol
Color indices: B-V= +0.90, U-B= +0.63
Diameter: 0.82 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.52 A.U.s
Angular size of star in sky in CZ: 0.835874 degrees

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