74 Orionis

light-years
Proper names: 74 Orionis
Catalog numbers:
     Woolley (Wo) 9207, Henry Draper (HD) 43386, Bonner Durchmusterung (BD) +12°1084, Hipparcos Input Catalog (HIC) 29800, Smithsonian Astrophysical Observatory (SAO) 95476, Fifth Fundamental Catalogue (FK5) 1169, Hoffleit Bright Star (HR) 2241, Luyten Two-Tenth (LTT) 11823
Arity: singular
Right Ascension and Declination: 6h16m26.617s, +12°16'19.71" (epoch 2000.0)
Distance from Sol: 64.0 light-years (19.6 parsecs)
Standard error in distance: 1.7341%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -4.48, 62.3, 13.6
Galactic (X,Y,Z) coordinates in ly: -60.7, -20.2, -1.60
Proper motion: 0.202 arcsec/yr (23.3° from north)
Radial Velocity: 8.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -12.3, 8.17, 14.5

What do all these fields mean?


Spectral class: F5
Luminosity Class: IV-V
Apparent visual magnitude: +5.04
Absolute visual magnitude: +3.58
Visual luminosity: 3.23 x Sol
Color indices: B-V= +0.42, U-B= -0.02
Diameter: 0.94 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.80 A.U.s
Angular size of star in sky in CZ: 0.278898 degrees

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