Uranus
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| Attributes: | ||
|---|---|---|
| Orbit: 2,870,990,000 km (19.218 AU) from Sun | ||
| Diameter: 51,118 km (equatorial) | ||
| Mass: 8.683e25 kg | ||
Uranus is the seventh planet in the Solar System. Uranus was discovered by the English astronomer William Herschel in 1781. It was originally named "Georgium Sidis," or "George's Planet," in honor of King George III of England. The name was later changed and named after the ancient Greek god of the heavens who was the father of Saturn (Chronos) and grandfather of Jupiter (Zeus). Uranus has twenty one moons, including Miranda, Circe, Puck, Baltar, Spungo, and Tybalt. Most of the moons of Uranus have names drawn from the works of Shakespeare.
It's probably called Uranus because it's a planet mainly composed of gaseous hydrogen and helium, with a small metallic core.