IAU descriptor term
Tholi in the Solar System
Tholus is the term planetary geologists use for a small domical mountain or hill. 109 named features carry it, across 5 of the 14 mapped worlds, the largest being Cerberus Tholi on Mars at 698 km.
Where they are
The largest tholi anywhere
Ranked across every mapped world, by catalogued diameter.
1Cerberus TholiMars698 km2Scandia TholiMars398 km3Toci TholusVenus300 km4Paoro TholiVenus225 km5Upunusa TholusVenus223 km6Cimmeria TholiMars222 km7Angerona TholusVenus200 km8Evaki TholusVenus200 km9Grechukha TholiVenus200 km10Sinai TholusMars200 km11Apis TholusIo199 km12Semele TholiVenus194 km13Hecates TholusMars182 km14Inachus TholusIo179 km15Biblis TholusMars169 km16Albor TholusMars158 km17Ezili TholusVenus150 km18Tharsis TholusMars149 km19Nipa TholusVenus140 km20Oxomoco TholusVenus140 km21Ashtart TholusVenus138 km22Kwannon TholusVenus135 km23Hesperus TholusMars135 km24Rosna TholiVenus130 km25Ceraunius TholusMars129 km26Ismo TholiVenus125 km27Pakhet TholusVenus111 km28Lama TholusVenus110 km29Mahuea TholusVenus110 km30Perynya TholusVenus110 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 109 tholi, 51 categories appear.
Greek23Latin9Roman6Slavic4New Zealand3Japan3Finland3India3