Uranus

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Mineral Springs Park
Sundance Sundial
Pekin, Illinois 

Mass (kg)........................................... 8.68 x 10^25
Diameter (km)....................................... 51118
Mean density (kg/m^3) .............................. 1290
Escape velocity (m/sec)............................. 21300

Average distance from Sun (AU)...................... 19.18
Rotation period (length of day) (in Earth hours).... 17.9
Revolution period (length of year) (in Earth years). 84

Obliquity (tilt of axis) (degrees).................. 97.9
Orbit inclination (degrees)......................... 0.77
Orbit eccentricity.................................. 0.047

Mean temperature (K)................................ 59

Visual geometric albedo............................. 0.56
Atmospheric components.............................. 83% hydrogen, 
                                                     15% helium, 
                                                      2% methane (at depth)
Rings............................................... Uranus has 
        a system of narrow, faint rings. Ring particles are dark, 
        and could consist of rocky or carbonaceous material.
(Information from the California Institute of Technology)

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