Bonner Durchmusterung +25°2874

light-years

Catalog numbers:
     Gliese (Gl) 579, Bonner Durchmusterung (BD) +25°2874, Giclas (G) 167-19, Luyten Half-Second (LHS) 391, Vyssotsky McCormick (McC) 57
Arity: singular
Right Ascension and Declination: 15h5m16s, +25°7'12" (epoch 1950.0)
Distance from Sol: 52.4 light-years (16.1 parsecs)
Standard error in distance: 7.3025%
Source for distance: Gliese
Celestial (X,Y,Z) coordinates in ly: -32.8, -34.3, 22.3
Galactic (X,Y,Z) coordinates in ly: 21.4, 15.9, 45.2
Proper motion: 1.003 arcsec/yr (299.5° from north)
Radial Velocity: -69.6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -92.6, -39.9, -22.9

What do all these fields mean?


Spectral class: K7
Luminosity Class: V
Apparent visual magnitude: +10.09
Absolute visual magnitude: +9.06
Visual luminosity: 0.021 x Sol
Color indices: B-V= +1.41, U-B= +1.22, R-I= +0.64
Comfort Zone (visual): 0.14 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.