Bonner Durchmusterung +54°1716

light-years

Catalog numbers:
     Gliese (Gl) 569.1, Henry Draper (HD) 132142, Bonner Durchmusterung (BD) +54°1716, Giclas (G) 200-62, Luyten Half-Second (LHS) 384, Hipparcos Input Catalog (HIC) 73005, Smithsonian Astrophysical Observatory (SAO) 29336, Woolley (Wo) 9501
Age: 10300 million years
Source for age: Don C. Barry, "Chromospheric Age Dependence of…", APJ 334
Heavy element abundance: 28% of Sol
Standard error in heavy element abundance: 0%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 14h55m11.08s, +53°40'48.92" (epoch 2000.0)
Distance from Sol: 78.0 light-years (23.9 parsecs)
Standard error in distance: 1.4837%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -33.3, -32.0, 62.8
Galactic (X,Y,Z) coordinates in ly: -0.24, 44.7, 63.9
Proper motion: 1.079 arcsec/yr (296.1° from north)
Radial Velocity: -14.4 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -108, -55.8, 21.1

What do all these fields mean?


Spectral class: K1
Luminosity Class: V
Apparent visual magnitude: +7.77
Absolute visual magnitude: +5.88
Visual luminosity: 0.39 x Sol
Color indices: B-V= +0.78, U-B= +0.33
Diameter: 0.84 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.62 A.U.s
Angular size of star in sky in CZ: 0.718447 degrees

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