Ab-Tzenketh (sometimes known as Tzenketh or possibly Tzenketh VI) is a planet, the sixth planet of fifteen in the Tzenketh star system of the Alpha Quadrant's Tzenkethi sector. Ab-Tzenketh was the homeworld of the Tzenkethi civilization and the administrative center of the Tzenkethi Coalition. The Tzenkethi homeworld is located in an area of the Alpha Quadrant's Federation expansion, with Starbase 621 and the planet Mizar not particularly distant. (ST reference: Star Charts; Decipher RPG module: Worlds; ST - Typhon Pact novel: Rough Beasts of Empire)