IAU descriptor term
Colles in the Solar System
Collis is the term planetary geologists use for a small hill or knob. 44 named features carry it, across 3 of the 14 mapped worlds, the largest being Tartarus Colles on Mars at 1,673 km.
Where they are
The largest colles anywhere
Ranked across every mapped world, by catalogued diameter.
1Tartarus CollesMars1,673 km2Scandia CollesMars1,522 km3Akkruva CollesVenus1,059 km4Chernava CollesVenus1,000 km5T ien Hu CollesVenus947 km6Mena CollesVenus850 km7Colles NiliMars654 km8Alpheus CollesMars633 km9Syria CollesMars630 km10Galaxias CollesMars610 km11Astapus CollesMars597 km12Oxia CollesMars595 km13Arena CollesMars580 km14Molpe CollesVenus548 km15Asherat CollesVenus500 km16Urutonga CollesVenus500 km17Jurate CollesVenus418 km18Nahete CollesVenus400 km19Ran CollesVenus400 km20Ruad CollesVenus400 km21Cydonia CollesMars363 km22Acidalia CollesMars356 km23Nuliayoq CollesVenus350 km24Ortygia CollesMars256 km25Salofa CollesVenus250 km26Avernus CollesMars239 km27Abalos CollesMars236 km28Migazesh CollesVenus230 km29Olosa CollesVenus200 km30Ariadnes CollesMars188 km
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 44 colles, 18 categories appear.
Greek13Latin8England6Roman3Russia1China1Phoenician1New Zealand1