10 Ursae Majoris
Proper names: 10 Ursae Majoris
Catalog numbers:
Gliese (Gl) 332, Henry Draper (HD) 76943, Bonner Durchmusterung (BD) +42°1956, Luyten Half-Second (LHS) 2093, Hipparcos Input Catalog (HIC) 44248, Smithsonian Astrophysical Observatory (SAO) 42642, Fifth Fundamental Catalogue (FK5) 339, Hoffleit Bright Star (HR) 3579, Kamper (KPR) 37
Heavy element abundance: 50% of Sol
Source for heavy element abundance: Strobel [Fe/H] Determinations
Arity: binary
Right Ascension and Declination: 9h0m38.39s, +41°46'57.98" (epoch 2000.0)
Distance from Sol: 53.6 light-years (16.4 parsecs)
Standard error in distance: 2.0914%
Source for distance: Hipparcos
Celestial (X,Y,Z) coordinates in ly: -28.3, 28.2, 35.7
Galactic (X,Y,Z) coordinates in ly: -40.0, -0.068, 35.7
Proper motion: 0.506 arcsec/yr (240.2° from north)
Radial Velocity: 27.1 km/sec
Source for proper motion and radial velocity: Gliese
Galactic (U,V,W) velocity components in km/s: -43.3, -18.7, -7.86
What do all these fields mean?
Data for A and B's orbit around one other:
Combined absolute visual magnitude: +2.88
Combined visual luminosity: 6.13 x Sol
Period: 22 years
Comfort Zone (visual) around both: 2.48 A.U.s
Component A:
Spectral class: F3
Luminosity Class: V
Apparent visual magnitude: +4.11
Absolute visual magnitude: +3.03
Visual luminosity: 5.34 x Sol
Color indices: B-V= +0.37, U-B= +0.02
Diameter: 1.34 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 2.31 A.U.s
Angular size of star in sky in CZ: 0.309277 degrees
Component B:
Spectral class: G5
Luminosity Class: V
Apparent visual magnitude: +6.18
Absolute visual magnitude: +5.10
Visual luminosity: 0.79 x Sol
Color indices: B-V= +0.65, U-B= +0.19
Diameter: 0.91 x Sol
Source for diameter: Apparent Diameters and Absolute Radii of Stars (Fracassini+ 1988)
Comfort Zone (visual): 0.89 A.U.s
Angular size of star in sky in CZ: 0.544745 degrees
Data for this star system were most recently updated on 4-April-2001.