Bonner Durchmusterung +48°1469

light-years

Catalog numbers:
     Gliese (Gl) 257.1, Henry Draper (HD) 51866, Bonner Durchmusterung (BD) +48°1469, Giclas (G) 107-42, Luyten Half-Second (LHS) 1890, Hipparcos Input Catalog (HIC) 33852, Smithsonian Astrophysical Observatory (SAO) 41500, AGK3 Reference (AGK3R) 6278
Arity: singular
Right Ascension and Declination: 7h1m38.623s, +48°22'43.4" (epoch 2000.0)
Distance from Sol: 66.6 light-years (20.4 parsecs)
Standard error in distance: 1.9427%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -11.8, 42.7, 49.8
Galactic (X,Y,Z) coordinates in ly: -60.5, 12.1, 25.1
Proper motion: 0.7 arcsec/yr (127.3° from north)
Radial Velocity: -22.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 24.6, -60.9, 28.2

What do all these fields mean?


Spectral class: K3
Luminosity Class: V
Apparent visual magnitude: +7.99
Absolute visual magnitude: +6.44
Visual luminosity: 0.23 x Sol
Color indices: B-V= +0.99, U-B= +0.87
Comfort Zone (visual): 0.48 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.