Cordoba Durchmusterung -25°10271

light-years

Catalog numbers:
     Gliese (Gl) 542.1, Henry Draper (HD) 125276, Cordoba Durchmusterung (CD) -25°10271, Luyten Half-Second (LHS) 2891, Hipparcos Input Catalog (HIC) 69965, Smithsonian Astrophysical Observatory (SAO) 182433, Aitken Double Star (ADS) 9212, Hoffleit Bright Star (HR) 5356, Woolley (Wo) 9476
Arity: binary
Right Ascension and Declination: 14h19m0.774s, -25°48'54.58" (epoch 2000.0)
Distance from Sol: 58.0 light-years (17.8 parsecs)
Standard error in distance: 1.6442%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -42.9, -29.8, -25.3
Galactic (X,Y,Z) coordinates in ly: 41.1, -26.5, 31.2
Proper motion: 0.507 arcsec/yr (313.2° from north)
Radial Velocity: -21 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -41.7, 7.05, 21.9

What do all these fields mean?


Component A:
Spectral class: F5
Luminosity Class: V
Apparent visual magnitude: +5.87
Absolute visual magnitude: +4.62
Visual luminosity: 1.24 x Sol
Color indices: B-V= +0.50, U-B= -0.10, R-I= +0.20
Diameter: 1.03 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.11 A.U.s
Angular size of star in sky in CZ: 0.493879 degrees


Component B:
Spectral class: M
Luminosity Class: V
Apparent visual magnitude: +13.30
Absolute visual magnitude: +12.05
Visual luminosity: 0.0013 x Sol
Diameter: 0.35 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.036 A.U.s
Angular size of star in sky in CZ: 5.139543 degrees

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