What is the home planet of Dr. Who?

Gallifrey is a planet in the long-running British science fiction television series Doctor Who. It is the original home world of the Time Lords, including the Doctor, the Master and the Rani. It is located in a binary star system within the constellation of Kasterborous, at "galactic coordinates ten-zero-eleven-zero-zero by zero-two from galactic zero centre".

During the first decade of the television series, the name of the Doctor's home planet was not revealed, although it was actually shown for the first time in The War Games (1969) during the Second Doctor's trial. It was finally identified by name for the first time in The Time Warrior (1973–74). It is never definitively stated when the appearances of Gallifrey in the television series take place. As the planet is often reached by means of time travel, its relative present could conceivably exist almost anywhere in the Earth's past or future.