Ariel
Ariel is the fourth-largest moon of Uranus, and the 15th in distance from the planet.

Facts About Ariel:
- Ariel is thought to be made up of roughly equal parts ice and rock. It is likely to have a rocky inner core with an icy mantle.
- It has an interesting surface terrain featuring craters, ridges and canyons.
- It orbits at a distance of about 190,000 km from Uranus.
Classification: Moon (orbiting Uranus)
Names: Ariel, Uranus I
Discovered: 1851 by William Lassell
Naming: Named after the fictional air spirit in Alexander Pope's poem The Rape of the Lock, and also William Shakespeare's play The Tempest.
Magnitude: 14.4000 (app)
Diameter: 1157.8 km
Mass: 1.251e+21 kg
Orbit Radius: 190900
Orbital Period: 2.52 Earth days
Orbital Speed: 5.5100 km/s
Eccentricity: 0.00120000
Volume: 812600000 km3
Density: 1.5920 g/cm3
Surface Area: 4211300 km2
Escape Velocity: 0.5590 km/s
Adjective: Arielian