Uranus
Uranus is an ice giant with a striking blue-green color, thanks to methane in its upper atmosphere. It’s unique for rotating almost completely on its side, with its poles pointing nearly at the Sun.
- Distance from Sun: ~2.87 billion km
- Diameter: 50,724 km
- Orbital period: 84 Earth years
- Mean cloud top temperature: -224°C (coldest planet!)
- Moons: 27 (biggest: Titania, Oberon)
- Key Feature: Axis tilted 98°, rolls like a barrel around the Sun
Quick Facts
Uranus’ unusual tilt is thought to be caused by a massive collision long ago. Its faint rings and icy moons make it a target for future robotic exploration.