The winds on Uranus blow mainly to the east and can reach speeds up to 600 kilometers per hour. The rapid spin of Uranus influences the winds in the atmosphere. Uranus has a very strong magnetic field. This planet has a system of rings which was not discovered until 1977. The ring system contains eleven dark rings composed of varying sized particles.
Satellites embedded in the rings create gaps between the rings.
Uranus has at least 18 natural satellites, both within the rings and outside of the rings. The eighteenth satellite was not discovered until 1999. An astronomer from Arizona was able to identify the satellite after comparing images taken in 1986 by the Voyager II spacecraft and more recent images taken by the Hubble Space Telescope . If confirmed, Uranus would have a total of 21 moons, making it the most populated planetary satellite system known. Additional observations of the objects are necessary to confirm that they are indeed moons of the planet rather than some other type of object like a comet or an asteroid.