United Federation of Planets (2272)|
Troyius was the homeworld of the Troyian people, located in the Tellun system. Troyius occupies an orbit beyond its inner neighbor, the planet Elas. Troyius was located in the Beta Quadrant.
Dilithium crystals, called radans by Troyians, are common on Troyius. (TOS: "Elaan of Troyius")