83 Leonis

light-years
Proper names: 83 Leonis
Catalog numbers:
     Gliese (Gl) 429, Aitken Double Star (ADS) 8162, Fifth Fundamental Catalogue (FK5) 1296, Hoffleit Bright Star (HR) 4414
Heavy element abundance: 123% of Sol
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: binary
Right Ascension and Declination: 11h26m45.328s, +3°0'47.05" (epoch 2000.0)
Distance from Sol: 57.6 light-years (17.7 parsecs)
Standard error in distance: 2.4142%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -57.0, 8.32, 3.03
Galactic (X,Y,Z) coordinates in ly: -4.90, -29.6, 49.2
Proper motion: 0.747 arcsec/yr (283.6° from north)
Radial Velocity: 3.8 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -60.5, -13.4, -9.60

What do all these fields mean?

Data for A and B's orbit around one other:
Combined absolute visual magnitude: +4.91
Combined visual luminosity: 0.95 x Sol
Observed Separation: 502 A.U.s
As seen from A:
     B would appear as magnitude -11.73
As seen from B:
     A would appear as magnitude -12.82


Component A:
Catalog numbers:
     Henry Draper (HD) 99491, Bonner Durchmusterung (BD) +3°2502, Luyten Half-Second (LHS) 2407, Hipparcos Input Catalog (HIC) 55846, Smithsonian Astrophysical Observatory (SAO) 118864
Spectral class: K0
Luminosity Class: IV
Apparent visual magnitude: +6.49
Absolute visual magnitude: +5.25
Visual luminosity: 0.69 x Sol
Color indices: B-V= +0.80, U-B= +0.48, R-I= +0.24
Diameter: 1.91 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.83 A.U.s
Angular size of star in sky in CZ: 1.224038 degrees


Component B:
Catalog numbers:
     Henry Draper (HD) 99492, Bonner Durchmusterung (BD) +3°2503, Giclas (G) 10-23, Luyten Half-Second (LHS) 2408, Hipparcos Input Catalog (HIC) 55848, Smithsonian Astrophysical Observatory (SAO) 118865
Right Ascension and Declination: 11h26m46.3s, +3°0'22.7" (epoch 2000.0)
Celestial (X,Y,Z) coordinates in ly: -57.0, 8.32, 3.02
Galactic (X,Y,Z) coordinates in ly: -4.89, -29.6, 49.2
Proper motion: 0.745 arcsec/yr (284.7° from north)
Radial Velocity: 1.7 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -60.5, -11.2, -10.8
Spectral class: K2
Luminosity Class: IV-V
Apparent visual magnitude: +7.58
Absolute visual magnitude: +6.34
Visual luminosity: 0.25 x Sol
Color indices: B-V= +1.00, U-B= +0.92, R-I= +0.34
Diameter: 0.81 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.50 A.U.s
Angular size of star in sky in CZ: 0.858336 degrees

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