Gamma Aquarii

light-years
Proper names: Gamma Aquarii, 48 Aquarii, Sadachbia
Catalog numbers:
     Woolley (Wo) 9779, Henry Draper (HD) 212061, Bonner Durchmusterung (BD) -2°5741, Hipparcos Input Catalog (HIC) 110395, Smithsonian Astrophysical Observatory (SAO) 146044, Fifth Fundamental Catalogue (FK5) 842, Hoffleit Bright Star (HR) 8518, New Suspected Variable (NSV) 14132
Arity: singular
Right Ascension and Declination: 22h21m39.378s, -1°23'14.44" (epoch 2000.0)
Distance from Sol: 158 light-years (48.4 parsecs)
Standard error in distance: 7.6408%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 143, -65.6, -3.82
Galactic (X,Y,Z) coordinates in ly: 49.5, 97.4, -114
Proper motion: 0.13 arcsec/yr (84.9° from north)
Radial Velocity: -25.6 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -33.7, -19.9, 3.84

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: A0
Luminosity Class: V
Apparent visual magnitude: +3.85
Absolute visual magnitude: +0.42
Visual luminosity: 59.0 x Sol
Color indices: B-V= -0.05, U-B= -0.12
Diameter: 3.12 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 7.68 A.U.s
Angular size of star in sky in CZ: 0.216586 degrees

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