Sector block

Map of the known sector blocks.

A sector block is a region of space comprised of a number of individual sector regions, usually around 100 in number. The boundaries of a sector block are determined, by Federation reckoning, along with radial axes originating in the center of the galaxy. Groups of sector blocks numbering 900 or more make up a larger measurement, the sector quad.

In the Alpha and Beta Quadrant locality surrounding the Federation, sector blocks tend to measure 100 light-years by 100 light-years in width, and 80 light-years in height, accounting for the curvature created by the distance from the galaxy's center, laid out in a 9 ly by 10 ly by 10 ly grid. (ST reference: Star Charts)

Sector blocks

Named sector blocks

• the galaxy's Alpha or Beta Quadrant
  • Kridnar Navigation Block

• Alpha Quadrant sector block:
  • Alpha Trianguli sector block
  • Beta Ursae sector block
  • Orellius sector block
  • Zeta Andromedae sector block

• Beta Quadrant sector blocks:
  • Alpha Centauri sector block
  • Eta Eridani sector block
  • Gamma Orionis sector block
  • Iota Pavonis sector block
  • Omega Leonis sector block
  • Pi Canis sector block
  • Psi Velorum sector block
  • Regulus sector block
  • Sirius sector block
  • Tau Dewa sector block

• Delta Quadrant sector blocks:
  • Tekara sector block
  • Vyntadi sector block (also known as Delta sector block)

Background

All named sector blocks originate in STO video game: Star Trek Online. While the maps present are cursory, the arrangement of the local sector blocks suggests a different use of the measurement system compared to Star Charts.