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A Main is a grouping of systems, forming a chain of worlds, all reachable by a Jump-1 capable starship.

Description (Specifications)[edit]

This grouping provides a sort of “corridor” allowing jump-1 capable ships to travel to any world along the chain without ever exceeding jump-1.

  • Usually a Main encompasses 50 or more systems.
  • For ease of reference the main may be broken into arms, or branches.
  • Smaller groups of systems, between 5 and 50, all reachable by jump-1 are referred to as a trace or cluster.
Fundamental Astrographic Features
Type # Systems Definition Remarks
Main 51+ A very large grouping of systems None
Trace or Cluster 5 to 50 Smaller groupings of systems None

Cluster vs Trace Definitions[edit]

There are many ways to define various collections of stars and their associated jump routes, which include:

  1. Astronomical Designation: (clusters and traces based upon star formation upon creation and growth of the galaxy and often differentiated by star quantity within the Astrographic Feature)
  2. Economic Designation: (trades routes based upon interstellar economic trade activity and often named by colors such as red, green, etc.)
  3. FTL Range Designation: (jump routes such as J-1, J-4, etc.)

Obviously there is overlap between the various definitions. And while similarities exist, so do differences. The original mains were named after continuous chains of stars within one parsec of each other traversable by the early J-1 jump engines. Modern jump routes and jump bridges may be as far as six parsecs apart, allowing some merchant craft with greater ranges to use these longer trade routes. Modern trade routes or jump routes in 1115 TI designate these routes with a jump distance indicator of J-1 to J-6 indicating the farthest jumps on the route in parsecs.

History & Background (Dossier)[edit]

Many such groupings of worlds exist in the Charted Space.

Mains of Charted Space[edit]

AstronTheta BorealisKhaeawHkakhaeawYahehweOhieraoiZdiedeiantZhodaneYiklerzdanzhFulaniTheronFaoheiroi'iyhaoEsai'yoKefiykhtaFahreahluisTienspevnekrAfachtiabrVanguard ReachesIphigenaiaFtaoiyekyuWaroataheHeakhafawHfiywitirItvikiastafZiafrpliansForevenBeyondTouchstoneAfawahisaKarleayaEtakhasoaIrlaftaleaKnoellighzGvurrdonSpinward MarchesTrojan ReachRiftspan ReachesHlakhoiStaihaia'yoAktifaoTeahloarifuDhuerorrgTuglikkiDenebReftVergeEaliyasiywIwahfuahUistilraoAhkiweahi'NgathksirzProvenceCorridorGushemegeIlelishReavers' DeepDark NebulaUstral QuadrantBannersFa DzaetsWindhornVlandDagudashaagZarushagarDaibeiMagyarCanopusHanstoneGzaekfuegMeshanLishunCoreMassiliaDiasporaSolomani RimAldebaranMalornGashikanMendanAntaresFornastDelphiOld ExpansesAlpha CrucisNeworldHadjiTrenchansAmdukanEmpty QuarterLeyGlimmerdrift ReachesHinterworldsSpicaLangereStorrOgzuekhfosArzulStar's EndGatewayCrucis MarginLeonidaePhlaskDrakkenOgadogorzGn'hk'rGh!hkenKaa G!'kulExtolianLorspaneDarretCharted Space map
About this image


  • Yellow Dots: Star systems on long (51 or more stars) mains.
  • Blue Dots: Star systems on short (11 - 50 stars) mains.
  • Green Dots: Star systems not on any main (0 - 10 stars).
  • Red Lines: borders. Political borders.
  • Bright Blue Grid: sector borders. Organizational borders.
  • Dim Blue Grid: subsector borders. Organizational borders.

References & Contributors (Sources)[edit]

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