Bonner Durchmusterung -6°3964

light-years

Catalog numbers:
     Gliese (Gl) 541.1, Henry Draper (HD) 125184, Bonner Durchmusterung (BD) -6°3964, Hipparcos Input Catalog (HIC) 69881, Smithsonian Astrophysical Observatory (SAO) 139856, Hoffleit Bright Star (HR) 5353
Age: 5500 million years
Source for age: B. Edvardsson et al., "Chemical Evolution of the Galactic Disc", A&AP 275
Heavy element abundance: 240% of Sol
Source for heavy element abundance: B. Edvardsson et al., "Chemical Evolution of the Galactic Disc", A&AP 275
Arity: possible spectroscopic binary
Right Ascension and Declination: 14h18m0.73s, -7°32'32" (epoch 2000.0)
Distance from Sol: 107 light-years (32.8 parsecs)
Standard error in distance: 3.1776%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -87.5, -60.1, -14.1
Galactic (X,Y,Z) coordinates in ly: 65.1, -26.5, 80.7
Proper motion: 0.351 arcsec/yr (131.0° from north)
Radial Velocity: -12.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 34.9, 4.23, -43.7

What do all these fields mean?


Spectral class: G8
Luminosity Class: V
Apparent visual magnitude: +6.47
Absolute visual magnitude: +3.89
Visual luminosity: 2.42 x Sol
Color indices: B-V= +0.73, U-B= +0.35, R-I= +0.22
Diameter: 1.90 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.56 A.U.s
Angular size of star in sky in CZ: 0.652691 degrees

light-years
but not more than light-years away
Data for this star system were most recently updated on 12-May-2001.