Magellan World
From Tardis Wiki, the free Doctor Who reference
The Magellan World was a planet with three suns and home of the Magellan Gestalt. The Tenth and Fourth Doctors arrived on a beach on the planet via the Cathedral of Contemplation. While the Fourth Doctor quickly departed in his TARDIS, the Tenth Doctor decided to stay and enjoy the Festival of the Phosphorous Carousel. (AUDIO: Out of Time) He would later recall seeing the Phosphorous Carousel to Ood Sigma. (TV: The End of Time)