Mons (planetary nomenclature)

Peculiar round mountains found on Venus get names with the term farrum.

For example, the Geryon Montes of Mars are an erosional remnant of a former plateau within Ius Chasma, part of the Valles Marineris canyon system.

The term mons was firstly used for extraterrestrial mountains by Michael van Langren in 1645.

[10] Two years later Johannes Hevelius proposed[11] the first names of extraterrestrial mountains still used.

The lunar Alps and Apennines still bear names given by Hevelius, and five of his other mountain names nowadays refer to other features (in some cases his "mountains" later turned out to be bright rays from craters).