Upsilon Aquarii

light-years
Proper names: Upsilon Aquarii, 59 Aquarii
Catalog numbers:
     Gliese (Gl) 863.2, Henry Draper (HD) 213845, Bonner Durchmusterung (BD) -21°6251, Hipparcos Input Catalog (HIC) 111449, Smithsonian Astrophysical Observatory (SAO) 191235, Fifth Fundamental Catalogue (FK5) 849, Hoffleit Bright Star (HR) 8592, Woolley (Wo) 9789
Arity: singular
Right Ascension and Declination: 22h34m41.643s, -20°42'29.55" (epoch 2000.0)
Distance from Sol: 74.2 light-years (22.7 parsecs)
Standard error in distance: 1.6771%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 64.6, -25.2, -26.2
Galactic (X,Y,Z) coordinates in ly: 30.4, 23.7, -63.4
Proper motion: 0.263 arcsec/yr (122.6° from north)
Radial Velocity: -4.2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -16.2, -21.1, -10.7

What do all these fields mean?


Spectral class: F3
Luminosity Class: V
Apparent visual magnitude: +5.20
Absolute visual magnitude: +3.41
Visual luminosity: 3.75 x Sol
Color indices: B-V= +0.44, U-B= +0.00, R-I= +0.24
Diameter: 1.42 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.94 A.U.s
Angular size of star in sky in CZ: 0.390245 degrees

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