IAU descriptor term
Large ringed features in the Solar System
Large ringed feature is the term planetary geologists use for a multi-ring impact basin, the largest class of impact structure there is. 10 named features carry it, across 3 of the 14 mapped worlds, the largest being Valhalla on Callisto at 3,000 km.
Where they are
The largest large ringed features anywhere
Ranked across every mapped world, by catalogued diameter.
What they are named after
Naming themes are set per world, so one descriptor can draw on very different sources depending on where it sits. Across all 10 large ringed features, 9 categories appear.
Norse2Greek1Celtic1Eskimo1Teutonic1Peru1Ireland1Puerto Rico1