Each Segmentum is divided into Sectors. The size of a sector varies according to local demands and stellar density. A typical sector might encompass 7 million cubic light years, equivalent to a cube with sides almost 200 light years long. Sectors are in turn divided into Subsectors.
Sources
- White Dwarf 139, Interstellar Travel, Jervis Johnson, Andy Jones, Simon Forrest & Rick Priestley
- White Dwarf 140, Interstellar Travel, Jervis Johnson, Andy Jones, Simon Forrest & Rick Priestley