The galaxy is divided into four quadrants. Each quadrant is further divided into 64 sectors, each covering an area of 5000 light-years by 5000 light-years. On the fringes of the galactic rim the sectors contain as few as 50 million stars. In the core worlds, sectors contain as many as 500 million stars, while the deep galactic core sectors contain nearly one billions stars. On average, a single sector on the map contains 230 million stars.

Planetary bodies can be found around 1 in every 1200 stars. Planets capable of supporting life occur about once in every 4000 of these solar systems. This gives an average of 50 life supporting systems per sector. About one-half to two-thirds of these systems are inhabited or colonized. Sectors in the galactic core contain between 80 and 100 inhabited systems while those in the outer rim contain between 10 and 20 inhabited systems.

Deep Core