Moon of Saturn · Updated May 2026
Dione.
Dione is one of Saturn's mid-sized icy moons, 1,123 km across. Its bright "wispy terrain" — a network of ice cliffs hundreds of metres high — was revealed by Cassini to be tectonic in origin, the result of past stretching of the icy crust.
View Saturn system in 3D →Key facts
Dione is in a 1:2 orbital resonance with Enceladus, which helps maintain Enceladus's active geology by keeping its orbit eccentric.
About Dione
Dione's density (1.5 g/cm³) is higher than most of Saturn's mid-sized moons, suggesting more rock relative to ice. Cassini gravity data hints at a possible internal liquid water layer.
How to view Dione in 3D
Dione orbits Saturn in real time inside the interactive viewer. Open the parent body to see the orbital geometry, or use the object browser to fly directly to the moon and observe its rotation, surface, and orbit.
Open the Saturn system →Sources & methodology
Numbers cross-referenced with the sources below; updated May 2026.