Bonner Durchmusterung +74°634

light-years

Catalog numbers:
     Henry Draper (HD) 142474, Bonner Durchmusterung (BD) +74°634, Giclas (G) 257-23, Hipparcos Input Catalog (HIC) 77409, Smithsonian Astrophysical Observatory (SAO) 8344, Luyten Two-Tenth (LTT) 14698
Arity: singular
Right Ascension and Declination: 15h48m9.887s, +74°24'51.05" (epoch 2000.0)
Distance from Sol: 85.9 light-years (26.4 parsecs)
Standard error in distance: 2.1403%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -12.6, -19.4, 82.8
Galactic (X,Y,Z) coordinates in ly: -22.3, 64.2, 52.6
Proper motion: 0.318 arcsec/yr (162.6° from north)
Radial Velocity: -27 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 45.0, -15.9, -5.65

What do all these fields mean?


Spectral class: K5
Luminosity Class: V
Apparent visual magnitude: +9.34
Absolute visual magnitude: +7.24
Visual luminosity: 0.11 x Sol
Color indices: B-V= +1.18, R-I= +0.48
Comfort Zone (visual): 0.33 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.