Citadel

This colossal deep-space station serves as the political, cultural, and economic hub of galactic civilization. It is where the Citadel Council, which represents the major species of the galaxy, is headquartered, making it the de facto center of galactic governance. Gravity is simulated through rotation, and is a comfortable 1.02 standard G's on the Wards and a light 0.3 standard G's on the Presidium Ring. Total Length (Open): 44.7 km Diameter (Open): 12.8 km Population: 13.2 million (not including keepers) Gross Weight: 7.11 billion metric tons