Bonner Durchmusterung +39°154

light-years

Catalog numbers:
     Gliese (Gl) 28, Henry Draper (HD) 3765, Bonner Durchmusterung (BD) +39°154, Giclas (G) 132-15, Luyten Half-Second (LHS) 1125, Hipparcos Input Catalog (HIC) 3206, Smithsonian Astrophysical Observatory (SAO) 54074
Heavy element abundance: 87% of Sol
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 0h40m49.221s, +40°11'14.06" (epoch 2000.0)
Distance from Sol: 56.3 light-years (17.3 parsecs)
Standard error in distance: 1.6644%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 42.4, 7.62, 36.4
Galactic (X,Y,Z) coordinates in ly: -27.1, 44.5, -21.5
Proper motion: 0.746 arcsec/yr (152.4° from north)
Radial Velocity: -64.2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 19.2, -82.4, -26.5

What do all these fields mean?


Spectral class: K2e
Luminosity Class: V
Apparent visual magnitude: +7.36
Absolute visual magnitude: +6.18
Visual luminosity: 0.29 x Sol
Color indices: B-V= +0.94
Diameter: 0.79 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.54 A.U.s
Angular size of star in sky in CZ: 0.775775 degrees

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