Cape Photographic Durchmusterung -47°9196

light-years

Catalog numbers:
     Gliese (Gl) 747.3, Henry Draper (HD) 178445, Cape Photographic Durchmusterung (CPD) -47°9196, Luyten Half-Second (LHS) 3439, Hipparcos Input Catalog (HIC) 94225, UGPMF 465, Cordoba Durchmusterung (CD) -47°12773, Smethells (Sm) 29, Woolley (Wo) 9646
Arity: singular
Right Ascension and Declination: 19h10m52.314s, -47°9'31.68" (epoch 2000.0)
Distance from Sol: 65.4 light-years (20.1 parsecs)
Standard error in distance: 2.9406%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 13.5, -42.4, -48.0
Galactic (X,Y,Z) coordinates in ly: 59.3, -9.96, -25.8
Proper motion: 0.632 arcsec/yr (183.9° from north)
Radial Velocity: 2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -12.8, -57.5, -12.2

What do all these fields mean?


Spectral class: K7
Luminosity Class: V
Apparent visual magnitude: +9.36
Absolute visual magnitude: +7.85
Visual luminosity: 0.063 x Sol
Color indices: B-V= +1.32, U-B= +1.26, R-I= +0.58
Diameter: 0.7 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.25 A.U.s
Angular size of star in sky in CZ: 1.484988 degrees

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