Chi Draconis

light-years
Proper names: Chi Draconis, 44 Draconis
Catalog numbers:
     Gliese (Gl) 713, Henry Draper (HD) 170153, Bonner Durchmusterung (BD) +72°839, Luyten Half-Second (LHS) 3379, Hipparcos Input Catalog (HIC) 89937, Smithsonian Astrophysical Observatory (SAO) 9087, Fifth Fundamental Catalogue (FK5) 695, Hoffleit Bright Star (HR) 6927, New Suspected Variable (NSV) 10749
Heavy element abundance: 47% of Sol
Standard error in heavy element abundance: 0%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 18h21m3.381s, +72°43'58.33" (epoch 2000.0)
Distance from Sol: 26.28 light-years (8.057 parsecs)
Standard error in distance: 0.3853%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: 0.716, -7.768, 25.10
Galactic (X,Y,Z) coordinates in ly: -5.403, 22.54, 12.39
Proper motion: 0.632 arcsec/yr (124.4° from north)
Radial Velocity: 32 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 3.688, 39.81, -2.920

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: F7
Luminosity Class: V
Apparent visual magnitude: +3.57
Absolute visual magnitude: +4.04
Visual luminosity: 2.111 x Sol
Color indices: B-V= +0.49, U-B= -0.06, R-I= +0.20
Diameter: 1.212 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.453 A.U.s
Angular size of star in sky in CZ: 0.444880 degrees

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