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| 7th planet from the Sun, the third largest planet in the solar system | |
| Average distance from the Sun | 2,870,990,000 km / 19.218 AU |
| Diameter | 51,118 km (equatorial) |
| Mass | 8.683e25 kg |
| Orbital period around the Sun | 84 Earth years / 30,660 Earth days |
| Number of moons | about 27 named moons |
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| Uranus is unlike most of the planets which spin on an axis—it pins on an axis that is tilted so far it looks like a top spinning on its side. The blue-green color of the planet is due to methane in the atmosphere. It is difficult for beginners with small telescopes to find Uranus. In slightly larger scopes it will look more like a disk and less like a point. The largest are named after characters in Shakespeare plays. Others are named after characters in writings by Alexander Pope. | |
Our Solar System
Our solar system is located on the edge of a spiral arm called Orion’s Arm, and is one-half to two-thirds of the way (28,000 light-years) from the center of our Milky Way galaxy.The Sun, Sol
The Inner Planets
Mercury
Venus
Earth
The Moon
Mars
The Asteroid Belt
Dwarf planet, Ceres
Asteroid, Ida
Asteroid, Vesta
Asteroid, Eros
The Outer Planets
Jupiter
Saturn
Uranus
Neptune
The Kuiper Belt
Dwarf planet, Pluto
Dwarf planet, Eris
The Oort Cloud
Dwarf planet, Sedna
Comet Halley
Comet Hale-Bopp
Glossary of Terms
