According to Star Trek: Star Charts (pp. 33, 41, "United Federation of Planets I") and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), Deneb V (Deneb Kaitos V, Beta 16 Ceti V) was located in the Alpha Quadrant. The planet was classified as M-class. Deneb V was governed by the Commonwealth of Denebia from its seat in Port Drexler. Most of the system's population, 11.2 billion out of 19 billion, lived on this planet. The dominant species were the Denebians and Humans. This world joined the Federation in 2259, the year the Denebians became warp-capable.