Cordoba Durchmusterung -58°4940
Catalog numbers:
Gliese (Gl) 503, Henry Draper (HD) 114837, Cordoba Durchmusterung (CD) -58°4940, Hipparcos Input Catalog (HIC) 64583, Smithsonian Astrophysical Observatory (SAO) 240666, Hoffleit Bright Star (HR) 4989, Cape Photographic Durchmusterung (CPD) -58°4740, Luyten Two-Tenth (LTT) 5068
Age: 4400 million years
Source for age: B. Edvardsson et al., "Chemical Evolution of the Galactic Disc", A&AP 275
Heavy element abundance: 45% of Sol
Source for heavy element abundance: B. Edvardsson et al., "Chemical Evolution of the Galactic Disc", A&AP 275
Arity: binary
Right Ascension and Declination: 13h14m15.131s, -59°6'11.75" (epoch 2000.0)
Distance from Sol: 58.8 light-years (18.0 parsecs)
Standard error in distance: 1.1578%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -28.6, -9.61, -50.4
Galactic (X,Y,Z) coordinates in ly: 34.7, -47.3, 3.42
Proper motion: 0.296 arcsec/yr (237.7° from north)
Radial Velocity: -64.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -56.1, 38.3, -15.1
What do all these fields mean?
Data for A and B's orbit around one other:
Combined absolute visual magnitude: +3.62
Combined visual luminosity: 3.09 x Sol
Observed Separation: 48.7 A.U.s
As seen from A:
B would appear as magnitude -14.12
As seen from B:
A would appear as magnitude -19.50
Component A:
Spectral class: F7
Luminosity Class: IV
Apparent visual magnitude: +4.91
Absolute visual magnitude: +3.63
Visual luminosity: 3.07 x Sol
Diameter: 1.49 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.75 A.U.s
Angular size of star in sky in CZ: 0.453735 degrees
Component B:
Spectral class: K-M
Luminosity Class: V
Apparent visual magnitude: +10.30
Absolute visual magnitude: +9.02
Visual luminosity: 0.021 x Sol
Diameter: 0.64 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.15 A.U.s
Angular size of star in sky in CZ: 2.329450 degrees
Data for this star system were most recently updated on 12-May-2001.