Eta Corvi

light-years
Proper names: Eta Corvi, 8 Corvi
Catalog numbers:
     Gliese (Gl) 471.2, Henry Draper (HD) 109085, Bonner Durchmusterung (BD) -15°3489, Hipparcos Input Catalog (HIC) 61174, Smithsonian Astrophysical Observatory (SAO) 157345, Hoffleit Bright Star (HR) 4775, Woolley (Wo) 9411, New Suspected Variable (NSV) 5690
Arity: singular
Right Ascension and Declination: 12h32m4.223s, -16°11'45.63" (epoch 2000.0)
Distance from Sol: 59.4 light-years (18.2 parsecs)
Standard error in distance: 1.1875%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -56.5, -7.95, -16.6
Galactic (X,Y,Z) coordinates in ly: 18.7, -36.6, 42.9
Proper motion: 0.432 arcsec/yr (261.9° from north)
Radial Velocity: -0.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -29.6, -21.6, -6.62

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: F0
Luminosity Class: IV
Apparent visual magnitude: +4.30
Absolute visual magnitude: +3.00
Visual luminosity: 5.50 x Sol
Color indices: B-V= +0.37, U-B= +0.01, R-I= +0.21
Diameter: 1.51 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 2.35 A.U.s
Angular size of star in sky in CZ: 0.342449 degrees

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