Rhea
moon of Saturn · the second-largest
8.62 AU from Earth
Saturn's second-largest moon, 1,527 km across, about three quarters ice and one quarter rock. In 2010 Cassini flew through a whisper of oxygen and carbon dioxide around it, the first oxygen atmosphere sampled directly at a world other than Earth.
- 1,527 km across · orbit 4.5 days, 527,000 km from Saturn
- Inktomi: a young crater 47 km wide with rays hundreds of km long
Numbers that change with time are from 8 November 2026.
open Rhea in the atlas ›- kind
- place in the Solar System · moon or small world
- distance
- 527,108 km from Saturn
- size
- 1,530 km across
- orbits
- Saturn