PLANET URANUS



Information on URANUS STATISTICS

Uranus Statistics
 Discovered byWilliam Herschel 
 Date of discovery1781 
 Mass (kg)8.686e+25 
 Mass (Earth = 1)1.4535e+01 
 Equatorial radius (km)25,559 
 Equatorial radius (Earth = 1)4.0074 
 Mean density (gm/cm^3)1.29 
 Mean distance from the Sun (km)2,870,990,000 
 Mean distance from the Sun (Earth = 1)19.1914 
 Rotational period (hours)-17.9 
 Orbital period (years)84.01 
 Mean orbital velocity (km/sec)6.81 
 Orbital eccentricity0.0461 
 Tilt of axis (degrees)97.86 
 Orbital inclination (degrees)0.774 
 Equatorial surface gravity (m/sec^2)7.77 
 Equatorial escape velocity (km/sec)21.30 
 Visual geometric albedo0.51 
 Magnitude (Vo)5.52 
 Mean cloud temperature-193°C 
 Atmospheric pressure (bars)1.2 
 Atmospheric composition
Hydrogen
Helium
Methane

83% 
15% 
2% 



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