Gamma Hydra IV is the fourth planet in the Gamma Hydra star system, the location of a Federation settlement at Johnson City. The original settlers of the planet were irradiated by a rogue comet in 2267. (TOS episode: "The Deadly Years")

In 2372, Odo disguised himself as a container bound for Gamma Hydra IV, carrying Bajoran Muriniri dolls. (DS9 novel: The 34th Rule)

Mirror universeEdit

In the mirror universe, Spock assassinated Captain James T. Kirk and assumed command of the ISS Enterprise while en route to Gamma Hydra IV. (TOS novel: The Sorrows of Empire)

ConnectionsEdit

• Gamma Hydra IV article at Memory Alpha, the wiki for canon Star Trek.