Definitions for "Gallifrey"
Gallifrey is a fictional planet in the long-running British science fiction television series Doctor Who. The planet is home to the Doctor and others of his race, the Time Lords. It is supposed to be located in the constellation of Kasterborous, at "galactic coordinates ten-zero-eleven-zero-zero by zero-two from galactic zero centre" (Pyramids of Mars, 1975), some 250 million light years away from Earth (as stated in the 1996 Doctor Who television movie).In Terror of the Autons, a Time Lord emissary says that he has travelled "29,000 light years", leading to the original assumption that the Time Lord homeworld was that distance away.
Gallifrey is the umbrella title of a line of audio plays set in the Doctor Who universe, produced by Big Finish Productions, featuring Louise Jameson as Leela, Lalla Ward as President Romana, and John Leeson as two K-9 units, Mark I and Mark II. Like all spin-off media, its canonicity in relation to the television series is unclear, although the rise of Romana to the presidency of the Time Lords echoes a similar event in the novels.