Viln 82 no 55

light-years
Proper names: Viln 82 no 55
Catalog numbers:
     Gliese (Gl) 894.5, Henry Draper (HD) 220339, Bonner Durchmusterung (BD) -11°6064, Giclas (G) 157-54, Luyten Half-Second (LHS) 3939, Hipparcos Input Catalog (HIC) 115445, Smithsonian Astrophysical Observatory (SAO) 165664, Woolley (Wo) 9824
Arity: singular
Right Ascension and Declination: 23h23m4.892s, -10°45'51.07" (epoch 2000.0)
Distance from Sol: 63.5 light-years (19.5 parsecs)
Standard error in distance: 2.3755%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 61.6, -10.0, -11.9
Galactic (X,Y,Z) coordinates in ly: 10.3, 26.0, -57.0
Proper motion: 0.522 arcsec/yr (59.4° from north)
Radial Velocity: 35.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -41.6, 20.0, -38.4

What do all these fields mean?


Spectral class: K2
Luminosity Class: V
Apparent visual magnitude: +7.80
Absolute visual magnitude: +6.35
Visual luminosity: 0.25 x Sol
Color indices: B-V= +0.89, U-B= +0.59, R-I= +0.32
Diameter: 0.79 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.50 A.U.s
Angular size of star in sky in CZ: 0.842111 degrees

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