Bonner Durchmusterung +39°2950

light-years

Catalog numbers:
     Gliese (Gl) 612, Henry Draper (HD) 144872, Bonner Durchmusterung (BD) +39°2950, Giclas (G) 180-31, Luyten Half-Second (LHS) 3153, Hipparcos Input Catalog (HIC) 78913, Smithsonian Astrophysical Observatory (SAO) 65081
Arity: singular
Right Ascension and Declination: 16h6m29.562s, +38°37'56.57" (epoch 2000.0)
Distance from Sol: 76.6 light-years (23.5 parsecs)
Standard error in distance: 1.9802%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -28.4, -52.7, 47.8
Galactic (X,Y,Z) coordinates in ly: 24.7, 45.3, 56.6
Proper motion: 0.577 arcsec/yr (157.8° from north)
Radial Velocity: 24.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 68.6, 1.40, 1.53

What do all these fields mean?


Spectral class: K3
Luminosity Class: V
Apparent visual magnitude: +8.60
Absolute visual magnitude: +6.74
Visual luminosity: 0.17 x Sol
Color indices: B-V= +0.96, U-B= +0.71
Diameter: 0.74 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.42 A.U.s
Angular size of star in sky in CZ: 0.943565 degrees

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