Category:Sectors

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  • Cubic divisions of space 20 light-years to a side, used for quick identification (Star Charts)
    • Technically not precisely a cube, as "parallel" sides spinward and antispinward are actually portions of radial planes intersecting cylinder circumscribing the galaxy
      • Height and length (core-to-rim direction) defined as precisely 20 ly, but width (spin-to-antispin) defined such that breadth of sector 001 at midpoint is precisely 20 ly
      • Thus, sectors further rimward increasingly wider, sectors further coreward increasingly thinner
    • Given near-Sol stellar density of approximately 0.004 stars/cubic light-year with approximately 1.27 stars per system, on average approximately 30 stars per sector across 24 systems
      • Average 23 M-type, 4 K-type, 2 G-type, 1 F-type
        • Average one A-type per 5 sectors, one B-type per 27 sectors, one O-type per 100,000 sectors
      • Assuming uniform distribution of stars on a local level, this is the probability distribution function for distance to closest neighbor in local neighborhood using density of 0.004 stars/cubic light-year
      • Average stars per system based on number of stars within 100 ly with stellar companions by stellar class coupled with average proportions of stellar class for stars of types F through M; O through A ignored due to low proportionality
        • Values
          • 76% M-type, 25% with companions
          • 12% K-type, 31% with companions
          • 7.5% G-type, 32% with companions
          • 3% F-type, 57% with companions
          • 0.625% A-type
          • 0.125% B-type
          • 0.00003% O-type
  • Given numeric identifiers generally corresponding to distance from core systems
  • Often given informal verbal name as well
    • Verbal name generally refers to most prominent star in a given region
  • Sectors further subdivided into sections (ENT Novel: Kobayashi Maru)
    • 15 per sector, numbered coreward (sector 1) to rimward (sector 15)
      • Commonly used in shorthand for specific subsector division through alphabetic identifier rather than numeric
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