Delta Leonis

light-years
Proper names: Delta Leonis, 68 Leonis, Zozma, Duhr
Catalog numbers:
     Gliese (Gl) 419, Henry Draper (HD) 97603, Bonner Durchmusterung (BD) +21°2298, Hipparcos Input Catalog (HIC) 54872, Smithsonian Astrophysical Observatory (SAO) 81727, Fifth Fundamental Catalogue (FK5) 422, Hoffleit Bright Star (HR) 4357, New Suspected Variable (NSV) 5143
Arity: singular
Right Ascension and Declination: 11h14m6.495s, +20°31'25.3" (epoch 2000.0)
Distance from Sol: 57.7 light-years (17.7 parsecs)
Standard error in distance: 1.4473%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -53.0, 10.7, 20.2
Galactic (X,Y,Z) coordinates in ly: -15.6, -15.9, 53.2
Proper motion: 0.196 arcsec/yr (133.4° from north)
Radial Velocity: -20.2 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: 20.5, -0.48, -16.0

What do all these fields mean?


Spectral class: A4
Luminosity Class: V
Apparent visual magnitude: +2.56
Absolute visual magnitude: +1.32
Visual luminosity: 25.8 x Sol
Color indices: B-V= +0.12, U-B= +0.12
Diameter: 3.04 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 5.08 A.U.s
Angular size of star in sky in CZ: 0.319307 degrees

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