Aridus

Aridus was a desert planet used as an assembly point for the Alliance's battle fleet. It had a dry, healthy climate, with acres and acres of hard, rocky desert. Although there were blue kangaroo-like creatures, Aridus had no intelligent life forms, and was isolated and strategically insignificant. (PROSE: Warmonger)
:It's possible that "Aridus" is a typo and the planet was meant to be Aridius.
Category:Desert planets
Category:Uninhabited planets
Category:Planets visited by the Fifth Doctor