20 Leonis Minoris

light-years
Proper names: 20 Leonis Minoris
Catalog numbers:
     Gliese (Gl) 376, Henry Draper (HD) 86728, Bonner Durchmusterung (BD) +32°1964, Luyten Half-Second (LHS) 2216, Hipparcos Input Catalog (HIC) 49081, Smithsonian Astrophysical Observatory (SAO) 61808, Fifth Fundamental Catalogue (FK5) 1258, Hoffleit Bright Star (HR) 3951
Age: 6500 million years
Source for age: B. Edvardsson et al., "Chemical Evolution of the Galactic Disc", A&AP 275
Heavy element abundance: 141% of Sol
Standard error in heavy element abundance: 22%
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: singular
Right Ascension and Declination: 10h1m0.661s, +31°55'25.25" (epoch 2000.0)
Distance from Sol: 48.6 light-years (14.9 parsecs)
Standard error in distance: 1.2211%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -35.8, 20.5, 25.7
Galactic (X,Y,Z) coordinates in ly: -27.9, -7.73, 39.0
Proper motion: 0.684 arcsec/yr (230.5° from north)
Radial Velocity: 55.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -55.0, -44.3, 21.4

What do all these fields mean?


Spectral class: G2
Luminosity Class: Va
Apparent visual magnitude: +5.37
Absolute visual magnitude: +4.50
Visual luminosity: 1.37 x Sol
Color indices: B-V= +0.66, U-B= +0.27
Mass: 1.14 x Sol
Diameter: 1.26 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 1.17 A.U.s
Orbital period in CZ: 1.18872 years
Tidal index in CZ: 0.707684
Angular size of star in sky in CZ: 0.575104 degrees

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