Beta Prometheus I is an inhabited planet, the first planet in orbit of the Beta Prometheus star system, located somewhere in the space of the galaxy's Alpha or Beta Quadrants. This world was the homeworld of the Beta Promethean civilization. The native Conclaves of this world are ruled by the Ruling Family and the Inner Council. Archnos was the largest city on this world in the year 2294. (TOS novel: The Fearful Summons)