Bonner Durchmusterung +24°1357

light-years

Catalog numbers:
     Gliese (Gl) 241, Henry Draper (HD) 47752, Bonner Durchmusterung (BD) +24°1357, Giclas (G) 109-20, Hipparcos Input Catalog (HIC) 32010, Smithsonian Astrophysical Observatory (SAO) 78637, Vyssotsky McCormick (McC) 478
Arity: singular
Right Ascension and Declination: 6h41m15.69s, +23°57'27.86" (epoch 2000.0)
Distance from Sol: 57.2 light-years (17.5 parsecs)
Standard error in distance: 2.3443%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -9.35, 51.4, 23.2
Galactic (X,Y,Z) coordinates in ly: -55.4, -10.5, 9.11
Proper motion: 0.338 arcsec/yr (143.5° from north)
Radial Velocity: -44.6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 49.2, -18.8, -2.06

What do all these fields mean?


Spectral class: K6
Luminosity Class: V
Apparent visual magnitude: +8.11
Absolute visual magnitude: +6.89
Visual luminosity: 0.15 x Sol
Color indices: B-V= +1.02, U-B= +0.92, R-I= +0.38
Diameter: 1.41 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.39 A.U.s
Angular size of star in sky in CZ: 1.925770 degrees

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