Gamma Tauri was a star system in the Alpha Quadrant.
In 2259, the location of this system was labeled in a stellar cartography chart seen on the USS Enterprise's ready room viewscreen. (SNW: "Children of the Comet")
In 2364, the crew of a Ferengi D'Kora-class freighter stole a T-9 energy converter from an unmanned Federation monitor post on Gamma Tauri IV. (TNG: "The Last Outpost")