Oberon was a moon of Uranus. (PROSE: GodEngine) Oberon was part of the Interstitial Mass Transit System. (PROSE: Transit)
During the 22nd century Dalek invasion, the Adjudicators were based on Oberon, which became the centre of the resistance movement against the Daleks. Oberon remained an important Adjudicator base into the 30th century. (PROSE: GodEngine)