🪐 Planet
Uranus
The ice giant that rolls around the Sun on its side.
- Size
- 50,700 km across, 4 times wider than Earth
- A day lasts
- 17.2 hours, spinning backwards
- A year lasts
- 84 Earth years
- Moons
- 29
- Average temperature
- −195 °C
- Gravity
- 0.91× Earth’s
- From the Sun
- 2.9 billion km
📍 Where is it now?
Seen against the stars of Taurus, 2.8 billion km from Earth. Its light takes 2 hours 34 minutes to reach us.
Too faint to see without binoculars, even from a dark place.
Did you know?
- It is tipped over so far that each pole gets about 42 years of sunlight, then 42 years of darkness.
- Its moons are named after characters from Shakespeare and Alexander Pope.
Photographed or visited by
Voyager 2
The only spacecraft that has ever visited Uranus and Neptune.
Compare Uranus with EarthSide by side, to scale, in the app
More NASA photos of UranusStraight from NASA’s image library, in the app
Explore more
All of solar system
Mercury
The smallest planet, and the closest to the Sun.
Venus
The hottest planet, hidden under thick clouds.
Earth
Our home, the only world known to have life.
Mars
The red planet, with the tallest volcano in the solar system.
Jupiter
The biggest planet, with a storm larger than Earth.
Saturn
The ringed giant, light enough to float in water.