Cape Photographic Durchmusterung -68°1684

light-years

Catalog numbers:
     Gliese (Gl) 472, Henry Draper (HD) 109200, Cape Photographic Durchmusterung (CPD) -68°1684, Luyten Half-Second (LHS) 2577, Hipparcos Input Catalog (HIC) 61291, Smithsonian Astrophysical Observatory (SAO) 251953
Arity: singular
Right Ascension and Declination: 12h33m31.394s, -68°45'20.75" (epoch 2000.0)
Distance from Sol: 52.8 light-years (16.2 parsecs)
Standard error in distance: 1.0086%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -18.9, -2.79, -49.2
Galactic (X,Y,Z) coordinates in ly: 27.5, -44.7, -5.70
Proper motion: 0.629 arcsec/yr (240.5° from north)
Radial Velocity: 0.3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -35.8, -19.0, -26.1

What do all these fields mean?


Spectral class: K0
Luminosity Class: V
Apparent visual magnitude: +7.13
Absolute visual magnitude: +6.09
Visual luminosity: 0.32 x Sol
Color indices: B-V= +0.85, U-B= +0.48, R-I= +0.29
Diameter: 0.8 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.57 A.U.s
Angular size of star in sky in CZ: 0.754257 degrees

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