According to the Book
Gor, planet of-(noun): as Tarl was taught by his father, 'Gor is the name of this world'. In all the languages of the planet, it means 'Home Stone'. The planet is also called the Counter-Earth from the writings of the Pythagoreans who first speculated on it's existence. According to the Initiates, Gor was originally a satellite of a distant sun in the Blue Galaxies. It was moved several times from star to star by the Priest-Kings, by one theory, but, according to the 'Theory of the Sun Shield', it has remained in the same place, undiscovered because it is placed as a counterpoise to the Earth. It has the same plane or orbit and maintains that position, with occasional adjustments by the Priest-Kings, to always keep 'The Central Fire' between it and it's planetary sister, Earth.
Book 1: Tarnsman of Gor, pages 26, 28, 32 and 33
