Cordoba Durchmusterung -28°12769

light-years

Catalog numbers:
     Gliese (Gl) 652, Henry Draper (HD) 154088, Cordoba Durchmusterung (CD) -28°12769, Hipparcos Input Catalog (HIC) 83541, Smithsonian Astrophysical Observatory (SAO) 184990
Arity: singular
Right Ascension and Declination: 17h4m27.885s, -28°34'57.94" (epoch 2000.0)
Distance from Sol: 59.0 light-years (18.1 parsecs)
Standard error in distance: 1.5836%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -12.4, -50.3, -28.2
Galactic (X,Y,Z) coordinates in ly: 58.3, -4.48, 7.27
Proper motion: 0.277 arcsec/yr (160.5° from north)
Radial Velocity: 15.3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 16.5, -14.6, -17.7

What do all these fields mean?


Spectral class: G8
Luminosity Class: V
Apparent visual magnitude: +6.58
Absolute visual magnitude: +5.29
Visual luminosity: 0.67 x Sol
Color indices: B-V= +0.83, U-B= +0.54, R-I= +0.38
Diameter: 1.28 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.82 A.U.s
Angular size of star in sky in CZ: 0.835672 degrees

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