Cape Photographic Durchmusterung -60°6718

light-years

Catalog numbers:
     Gliese (Gl) 656, Henry Draper (HD) 154577, Cape Photographic Durchmusterung (CPD) -60°6718, Luyten Half-Second (LHS) 3268, Hipparcos Input Catalog (HIC) 83990, Smithsonian Astrophysical Observatory (SAO) 253819
Arity: singular
Right Ascension and Declination: 17h10m10.442s, -60°43'43.36" (epoch 2000.0)
Distance from Sol: 44.6 light-years (13.7 parsecs)
Standard error in distance: 1.2301%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -4.71, -21.3, -38.9
Galactic (X,Y,Z) coordinates in ly: 37.7, -21.7, -9.82
Proper motion: 0.612 arcsec/yr (8.9° from north)
Radial Velocity: 8.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 28.6, 25.0, 14.6

What do all these fields mean?


Spectral class: K0
Luminosity Class: V
Apparent visual magnitude: +7.39
Absolute visual magnitude: +6.71
Visual luminosity: 0.18 x Sol
Color indices: B-V= +0.89, U-B= +0.53, R-I= +0.33
Diameter: 0.81 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: 1.018732 degrees

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