Bonner Durchmusterung +37°4131

light-years

Catalog numbers:
     Henry Draper (HD) 199957, Bonner Durchmusterung (BD) +37°4131, Hipparcos Input Catalog (HIC) 103580, Smithsonian Astrophysical Observatory (SAO) 70761
Arity: singular
Right Ascension and Declination: 20h59m14.112s, +37°55'48.13" (epoch 2000.0)
Distance from Sol: 74 light-years (23 parsecs)
Standard error in distance: 22.6876%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: 41, -41, 45
Galactic (X,Y,Z) coordinates in ly: 11, 72, -6.9
Proper motion: 0.018 arcsec/yr (147.7° from north)
Source for proper motion: Gliese

What do all these fields mean?


Spectral class: K5
Luminosity Class: V
Apparent visual magnitude: +8.00
Absolute visual magnitude: +6.23
Visual luminosity: 0.3 x Sol
Color indices: B-V= +1.67, U-B= +2.03
Comfort Zone (visual): 0.5 A.U.s

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