Gamma Piscis Austrini

light-years
Proper names: Gamma Piscis Austrini, 22 Piscis Austrini
Catalog numbers:
     Woolley (Wo) 9800, Henry Draper (HD) 216336, Cordoba Durchmusterung (CD) -33°16270, Hipparcos Input Catalog (HIC) 112948, Smithsonian Astrophysical Observatory (SAO) 214153, Hoffleit Bright Star (HR) 8695, J. Herschel (HJ) 5367, New Suspected Variable (NSV) 14338
Arity: binary
Right Ascension and Declination: 22h52m31.558s, -32°52'31.8" (epoch 2000.0)
Distance from Sol: 222 light-years (68.2 parsecs)
Standard error in distance: 5.2326%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 179, -54.2, -121
Galactic (X,Y,Z) coordinates in ly: 93.6, 22.6, -200
Proper motion: 0.034 arcsec/yr (239.5° from north)
Radial Velocity: 16.5 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 16.7, -0.91, -10.6

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +0.31
Combined visual luminosity: 65.6 x Sol
Observed Separation: 286 A.U.s
As seen from A:
     B would appear as magnitude -14.86
As seen from B:
     A would appear as magnitude -18.96


Component A:
Spectral class: A0
Luminosity Class: III-V
Apparent visual magnitude: +4.50
Absolute visual magnitude: +0.33
Visual luminosity: 64.2 x Sol
Diameter: 2.84 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 8.01 A.U.s
Angular size of star in sky in CZ: 0.188708 degrees


Component B:
Proper motion: 0.034 arcsec/yr (239.5° from north)
Radial Velocity: 17 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 16.9, -0.85, -11.0
Spectral class: K
Luminosity Class: V
Apparent visual magnitude: +8.60
Absolute visual magnitude: +4.43
Visual luminosity: 1.47 x Sol
Diameter: 0.79 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.21 A.U.s
Angular size of star in sky in CZ: 0.347433 degrees

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