Rotation period (days.hours.min.secs)          17h.4m

Orbital period (days/years)                           84.01y

Orbital speed (miles/km per sec.)                  4.2/6.8

Inclination                                                    0.77 degree

Temperature (F degree/C degree)                 -366/-221

Gravity force (% or X Earth)                         91%

Escape velocity (miles/km per second)         13.0/21.0 

Satellites                                                At least 21.

Special Features                                    Extreme axial tilt; ring system

This NASA Hubble Space Telescope image of Uranus reveals the planet's rings, at least 5 of the inner moons, and the bright clouds in the planet's southern hemisphere. Each of the inner moons appears as a string of 3 dots in this photograph, it being a composite of 3 images, taken about 6 minutes apart. When these images are combined, they show a motion of the moons compared to the sky background. Because the moons move much more rapidly than our moon, there is an obvious change in position after only a few minutes.