Ariel

Ariel — moon orbiting Uranus, shown live in Cosmoscope, a real-time 3D map of the universe.

Valleys and faults crisscross its young, bright face.

Radius
578.9 km
Orbit
191k km from Uranus
Period
2.52 days
Surface
The brightest of Uranus’s moons

Seeing Ariel in real time

Cosmoscope puts Ariel at its true position in the solar system, computed from JPL-derived ephemeris and updated continuously. Open the live 3D view to see, in real time, how far Ariel is from the Sun and from Earth right now, how many minutes or hours light takes to cross that gap, and how fast it is moving along its orbit. Scrub the timeline to place Ariel where it was on any past date, or where it will be years from now.

Interactive universe A living map of the solar system
Interactive universe
Waking the solar system…