Facts about Uranus
- 08
Uranus completes one full orbit around the sun every 84 Earth years, making its discovery by William Herschel in 1781 the first identification of a planet in recorded history.
- 07
At minus 224 degrees Celsius, Uranus holds the coldest planetary atmosphere temperature recorded in our solar system, colder than Neptune despite orbiting farther from the sun.
- 06
The magnetic field of Uranus tilts at 59 degrees from its axis of rotation and doesn't pass through the planet's center, making it the most unusual planetary magnetic field in our solar system.
- 05
Uranus possesses a faint ring system of at least 13 known rings composed primarily of dark particles, discovered in 1977 through stellar occultation observations.
- 04
Uranus's atmosphere contains hydrogen, helium, and methane, with the methane absorbing red light and reflecting blue wavelengths that give the planet its distinctive cyan appearance.
- 03
In 1986, Voyager 2 discovered 10 previously unknown moons orbiting Uranus, bringing the total count to 15 at that time.
- 02
Uranus rotates on its side with an axial tilt of 98 degrees, likely caused by a collision with an Earth-sized object billions of years ago.
- 01
Extreme winds on Uranus reach speeds of 900 kilometers per hour despite the planet receiving 400 times less solar energy than Earth.