Rigel IV

From Tardis Wiki, the free Doctor Who reference

Rigel IV was a planet.

After an unpleasant experience on Rigel IV, the Sixth Doctor tried to take Peri to a party in London 1899 but ended up arriving in Africa at the same time, becoming caught up in a conflict in the Boer Wars where they narrowly saved Winston Churchill from an assassin. (PROSEPlayers)

In the 26th century, materra was imported from Rigel IV to Megerra. (PROSE: Shakedown)

The Unbound Doctor and Bernice Summerfield once visited the planet, but the Doctor refused to leave the TARDIS when it was raining. Summerfield thought the rain on Rigel IV was remarkable. (AUDIO: Have I Told You Lately?)