Cordoba Durchmusterung -24°15668

light-years

Catalog numbers:
     Gliese (Gl) 770, Henry Draper (HD) 188088, Cordoba Durchmusterung (CD) -24°15668, Hipparcos Input Catalog (HIC) 97944, Smithsonian Astrophysical Observatory (SAO) 188692, UGPMF 479, Hoffleit Bright Star (HR) 7578
Arity: singular
Right Ascension and Declination: 19h54m17.73s, -23°56'27.7" (epoch 2000.0)
Distance from Sol: 46.4 light-years (14.2 parsecs)
Standard error in distance: 1.1384%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 20.3, -37.2, -18.8
Galactic (X,Y,Z) coordinates in ly: 40.2, 12.7, -19.2
Proper motion: 0.426 arcsec/yr (197.4° from north)
Radial Velocity: -5.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 3.61, -28.9, 0.68

What do all these fields mean?


NOTE: This star is actually a close-orbiting binary pair. The data below are for both sub-components of the pair combined.
Spectral class: K3-4
Luminosity Class: V
Apparent visual magnitude: +6.19
Absolute visual magnitude: +5.43
Visual luminosity: 0.59 x Sol
Color indices: B-V= +1.02, U-B= +0.94, R-I= +0.34
Diameter: 1.59 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.77 A.U.s
Angular size of star in sky in CZ: 1.105508 degrees

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