Centauri VII

Centauri VII or Centauri Seven, (PROSE: Time and the Rani) pronounced "Sen-Tur-I Seven" by the Seventh Doctor, was a planet.

Regaining consciousness in 's laboratory on Lakertya, the Seventh Doctor mentioned several things he needed to do, including that he "must just pop over" to Centauri Seven, and then perhaps a quick holiday. (TV: Time and the Rani)