Bygoth is an uninhabited star system in the Gorn Empire, housing a shipyard for the Gorn spacefleet, located somewhere in the space of the galaxy's Alpha or Beta Quadrants.
History and specifics
According to a Starfleet Academy simulator scenario, a Constitution-class starship had to destroy the shipyard. During the encounter simulated there, a Gorn crew attempted to bring the ship on line and was destroyed. (TOS video game: Starfleet Academy Starship Bridge Simulator)