Bajor was the inhabited eleventh planet of the Bajoran system. This system was located in the Bajor sector, a region of space in the Alpha Quadrant in the Duyi'zu Milky Way. This was the largest planet in the system and had five moons, including Derna and Jeraddo. The planet was the homeworld of the Bajorans, a warp capable humanoid species. After decades of Axis rule, the planet regained its independence and became affiliated with the Alliance of Civilizations.