The system consisted of a primary and five named planets. Cardassia Prime (Cardassia II) was the inhabited homeworld of the Cardassians, a warp-capable species. This planet was also the capital of the Cardassian Union. (DS9: "Explorers") The system also included Cardassia I, and the planets Cardassia III, Cardassia IV, and Cardassia V that were colonized by the Cardassians. (DS9: "The Homecoming", "Shadowplay", "Prophet Motive")