Alpha Corvi

light-years
Proper names: Alpha Corvi, 1 Corvi, Alkhiba
Catalog numbers:
     Gliese (Gl) 455.3, Henry Draper (HD) 105452, Cordoba Durchmusterung (CD) -24°10174, Hipparcos Input Catalog (HIC) 59199, Smithsonian Astrophysical Observatory (SAO) 180505, Hoffleit Bright Star (HR) 4623
Heavy element abundance: 25% of Sol
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 12h8m24.8s, -24°43'44.02" (epoch 2000.0)
Distance from Sol: 48.2 light-years (14.8 parsecs)
Standard error in distance: 1.0955%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -43.7, -1.61, -20.2
Galactic (X,Y,Z) coordinates in ly: 14.1, -35.8, 29.0
Proper motion: 0.099 arcsec/yr (116.4° from north)
Radial Velocity: 2.9 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 7.47, -0.72, 0.30

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-V
Apparent visual magnitude: +4.02
Absolute visual magnitude: +3.17
Visual luminosity: 4.68 x Sol
Color indices: B-V= +0.32, U-B= -0.02, R-I= +0.20
Mass: 1.5 x Sol
Diameter: 1.37 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 2.16 A.U.s
Orbital period in CZ: 2.59836 years
Tidal index in CZ: 0.148115
Angular size of star in sky in CZ: 0.336361 degrees

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