53 Aquarii

light-years
Proper names: 53 Aquarii
Catalog numbers:
     Gliese (Gl) 859, Aitken Double Star (ADS) 15934, South & Herschel (SHJ) 345
Heavy element abundance: 153% of Sol
Standard error in heavy element abundance: 46%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: binary
Right Ascension and Declination: 22h26m34.4s, -16°44'33" (epoch 2000.0)
Distance from Sol: 65.5 light-years (20.1 parsecs)
Standard error in distance: 4.8529%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 57.6, -24.9, -18.9
Galactic (X,Y,Z) coordinates in ly: 27.0, 25.5, -54.0
Proper motion: 0.222 arcsec/yr (90.0° from north)
Radial Velocity: -0.3 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -17.6, -4.73, -10.7

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +4.03
Combined visual luminosity: 2.12 x Sol
Observed Separation: 80.3 A.U.s
Year of separation observation: 1961
As seen from A:
     B would appear as magnitude -17.16
As seen from B:
     A would appear as magnitude -17.35


Component A:
Catalog numbers:
     Henry Draper (HD) 212698, Bonner Durchmusterung (BD) -17°6521, Smithsonian Astrophysical Observatory (SAO) 165078, Hoffleit Bright Star (HR) 8545
Spectral class: G3
Luminosity Class: V
Apparent visual magnitude: +6.21
Absolute visual magnitude: +4.70
Visual luminosity: 1.15 x Sol
Diameter: 0.94 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.07 A.U.s
Angular size of star in sky in CZ: 0.466845 degrees


Component B:
Catalog numbers:
     Henry Draper (HD) 212697, Bonner Durchmusterung (BD) -17°6520, Hipparcos Input Catalog (HIC) 110778, Smithsonian Astrophysical Observatory (SAO) 165077, Hoffleit Bright Star (HR) 8544
Right Ascension and Declination: 22h26m34.29s, -16°44'30.8" (epoch 2000.0)
Celestial (X,Y,Z) coordinates in ly: 57.6, -24.9, -18.9
Galactic (X,Y,Z) coordinates in ly: 27.0, 25.5, -54.0
Proper motion: 0.261 arcsec/yr (92.2° from north)
Radial Velocity: 2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -19.4, -5.49, -14.7
Spectral class: G3
Luminosity Class: V
Apparent visual magnitude: +6.40
Absolute visual magnitude: +4.89
Visual luminosity: 0.97 x Sol
Diameter: 0.91 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.98 A.U.s
Angular size of star in sky in CZ: 0.493274 degrees

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