Bonner Durchmusterung +25°3003

light-years

Catalog numbers:
     Henry Draper (HD) 143313, Bonner Durchmusterung (BD) +25°3003, Hipparcos Input Catalog (HIC) 78259, Smithsonian Astrophysical Observatory (SAO) 84114
Arity: singular
Right Ascension and Declination: 15h58m43.956s, +25°34'10.61" (epoch 2000.0)
Distance from Sol: 74 light-years (23 parsecs)
Standard error in distance: 13.7255%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -34, -58, 32
Galactic (X,Y,Z) coordinates in ly: 37, 33, 55
Proper motion: 0.136 arcsec/yr (215.2° from north)
Radial Velocity: -4.5 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 3.8, -15, 0.3

What do all these fields mean?


NOTE: This star is actually a close-orbiting binary pair. The data below are for both sub-components of the pair combined.
Spectral class: K2
Luminosity Class: V
Apparent visual magnitude: +8.28
Absolute visual magnitude: +6.50
Visual luminosity: 0.2 x Sol
Color indices: B-V= +1.00, U-B= +0.72
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.