Uranus has 27 known moons, with Oberon and Titania being the largest. The surfaces of the four largest moons are covered with craters formed by meteorites, and astronomers believe they are composed of ice and rock. Uranus has 13 dark, faint rings composed likely of ice and dust encircling its equator. Astronomers use telescopes to observe how Uranus orbits the sun in an oval path, taking 84 years to complete one revolution around a distance of approximately 3 billion kilometers from the sun. William Herschel first discovered Uranus in 1781 using a telescope.

1. Uranus By Trevor Casey

2. Uranus and it moons Uranus has 27 know moons the 2 biggest are Oberon and Titania. The next largest moons are Umbriel and Ariel. All four of these moons surfaces are covered with holes called craters made by Meteorites . Astronomers think that these 4 moons are made of ice and rock. . Miranda is the 5 biggest moon.

3. Uranus an it rings Astronomers have found 13 rings around Uranus. The rings go around the equator. The rings are dark and faint. They may be made of ice and dust.

4. Uranus In this photo collage, the planet Uranus (the bright blue object) is surrounded by its five largest moons. The blue-green colour of Uranus comes from the methane gas in its atmosphere.

5. Uranus Astronomers use telescopes to learn how Uranus moves across the sky. Uranus is the seventh planet from the Sun. It orbits, or goes around, the Sun in an oval-shaped path. Its average distance from the Sun is a bit less than 3 billion kilometres. Uranus is so far away that it takes 84 years for the planet to go around the Sun once!

6. Who discovered Uranus Uranus was the first planet discovered with a telescope by William Herschel, an astronomer in England, found Uranus in 1781. Astronomers had known about Uranus since 1690, but they did not know Uranus was a planet. At first, they thought it was a star or a comet.

7. facts Astronomers named the planet Uranus for an ancient Greek god of the heavens. Rotational period1 -0.718 days Orbital period 84.01 years Average distance from the Sun 2.857 billion kilometres .

8. Glossary Meteorites (rocks from space). Astronomers (are scientists who study things in space). Equator An equator is an imaginary line around the middle of a planet.

9. Were i got my info and pictures from Microsoft ® Encarta ® 2009. © 1993-2008 Microsoft Corporation. All rights reserved. Clip art

10. The End