Cordoba Durchmusterung -29°9337

light-years

Catalog numbers:
     Gliese (Gl) 446, Henry Draper (HD) 102438, Cordoba Durchmusterung (CD) -29°9337, Hipparcos Input Catalog (HIC) 57507, Smithsonian Astrophysical Observatory (SAO) 202811, Southern Reference System (SRS) 10577, Hoffleit Bright Star (HR) 4525
Arity: singular
Right Ascension and Declination: 11h47m15.815s, -30°17'11.35" (epoch 2000.0)
Distance from Sol: 58.0 light-years (17.8 parsecs)
Standard error in distance: 1.3502%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -50.0, 2.78, -29.2
Galactic (X,Y,Z) coordinates in ly: 15.1, -47.6, 29.4
Proper motion: 0.353 arcsec/yr (229.4° from north)
Radial Velocity: 11.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -8.80, -26.6, -15.4

What do all these fields mean?


Spectral class: G5
Luminosity Class: V
Apparent visual magnitude: +6.48
Absolute visual magnitude: +5.23
Visual luminosity: 0.70 x Sol
Color indices: B-V= +0.68, U-B= +0.20, R-I= +0.24
Diameter: 0.94 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.84 A.U.s
Angular size of star in sky in CZ: 0.595008 degrees

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