Difference between revisions of "Sector"

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A '''Sector''' is a astrophysical co-ordinate system applied to the galaxy. A sector is part of a [[Domain]] within the [[Third Imperium|Imperium]], and contrains [[sub-sectors]].
+
[[File:Comp-Prog-Dav-R-Deitrick-Starter-Trav-Page-16 16-July-2018a.jpg|right]]
 +
A [[Sector]] is an astrophysical co-ordinate system applied to [[Charted Space]].  
 +
* A sector is part of a [[Domain]] within the [[Third Imperium|Imperium]], and contains [[Subsector|subsectors]].
  
−
Sectors were usually published as a single book.
+
== Description ([[Specifications]]) ==
 +
This is a mapping unit in astrography equal to sixteen subsectors.
 +
* Typical density is 350 to 650 worlds per sector.
  
−
Some sectors are known by other names (by non-imperial races), strangely enough they use the same co-ordinate system.
+
=== Sector Nomenclature ===
 +
Sectors are named, and several synonyms are in common use, including:
 +
* March (or Marches),
 +
* Region,
 +
* Reach (or Reaches),
 +
* Quadrant (but see [[quadrant|here]]), and
 +
* Matrix.  
  
−
[[Category:Library]]
+
The [[Spinward Marches Sector|Spinward Marches]], for example, is a sector.
 +
 
 +
=== Sector Quadrants ===
 +
While not enforced, the [[IISS]] has been using a system of [[quadrant]]s (four [[subsector]]s each) to further subdivide astrographic sectors. Terran Greek lettering is used to mark these quadrants: Alpha, Beta, Delta, and Gamma.
 +
 
 +
This terminology was developed after many of the core sectors of the [[Third Imperium]] were already established; in these areas, it is far more common to hear subsectors referred to by their associated [[duchy]].
 +
 
 +
== History & Background ([[Dossier]]) ==
 +
The mighty ''[[Ziru Sirka]]'' originated the sector astrography system. As a giant interstellar empire considerably more advanced than its neighbors, it conquered much of [[Charted Space]]. What the Romans are to Terran history is what the ancient Vilani are to the history of Charted Space -- they came, saw, and conquered, and their subjective partitions of space became the standards for [[astrography]]. When non-Vilani traders adopted the system, it truly became cemented as the most widely adopted system of interstellar astrography used within the known galaxy.
 +
 
 +
Not all interstellar polities use the Vilani sector system internally, but they all provide traders with sector-compatible star charts to facilitate trade. Even some of the newest races to Charted Space have quickly adopted the system. Profit is a powerful motivator. Even the Terrans who conquered the ''[[Ziru Sirka]]'' were forced to adopt this Vilani astrographic adaptation. 
 +
 
 +
=== Charted Space Overview ===
 +
As a rough means of comparing size, the sector counts of the large interstellar states and areas of settlement are:
 +
 
 +
:{| class="wikitable sortable"
 +
!colspan="4"|Sectors of the Major Races in [[Charted Space]]
 +
|-
 +
! [[Polity]] (Government)
 +
! [[Society]] (People)
 +
! Sectors
 +
! Remarks
 +
|-
 +
| [[Third Imperium]]
 +
| Imperial & [[Vilani]]
 +
| 19
 +
| None
 +
|-
 +
| [[Aslan Hierate]]
 +
| [[Aslan]]
 +
| 15
 +
| None
 +
|-
 +
| [[Hive Federation]]
 +
| [[Hiver]]
 +
| 11
 +
| None
 +
|-
 +
| [[Two Thousand Worlds]]
 +
| [[K'kree]]
 +
| 09
 +
| None
 +
|-
 +
| [[Vargr Extents]]
 +
| [[Vargr]]
 +
| 09
 +
| None
 +
|-
 +
| [[Zhodani Consulate]]
 +
| [[Zhodani]] [[Humaniti]]
 +
| 08
 +
| None
 +
|-
 +
| [[Solomani Confederation]]
 +
| [[Solomani]] [[Humaniti]]
 +
| 05
 +
| None
 +
|-
 +
| [[Droyne Oytrip Yatroy (Polity)|Droyne Oytrip Yatroy]]
 +
| [[Droyne]]
 +
| Interspersed
 +
| None
 +
|}
 +
 
 +
''Notes:'' Several sectors are known by other names (by non-Imperial races). Strangely enough they use the same co-ordinate system.
 +
* The earliest known use of the term "sector" was among the [[Vilani]], who used a slightly smaller '[[parsec]]', compared to the current, Solomani-derived parsec.
 +
* The library refers to all sectors with the word ''Sector'', thus ''Riftspan Reaches'', or ''Dark Nebula'' are known as [[Riftspan Reaches Sector]] or [[Dark Nebula Sector]] in [[Library Data]] entries even though the former name is used in normal discussion.
 +
* Please see [[Sector Map]] and [[Sectors]] for an alphabetical listing of all sectors, and alien toponyms (names) for those sectors.
 +
 
 +
=== Charted Space Table ===
 +
The following table lists the Sectors near the {{Imperium}}; see articles on the other empires for sectors in their Domains, and [[Subsector Map]] for a map of allegiances by subsector.
 +
 
 +
{| border="1"
 +
!colspan="10"|Sectors Near the Imperium
 +
|-
 +
!
 +
! -5
 +
! -4
 +
! -3
 +
! -2
 +
! -1
 +
! 0
 +
! 1
 +
! 2
 +
! 3
 +
|-
 +
! 2
 +
| style="color: #000; background-color: #{{Allegiance colors|Zh}}" | [[Ziafrplians Sector|Ziafrplians]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Va}}" | [[Gvurrdon Sector|Gvurrdon]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Va}}" | [[Tuglikki Sector|Tuglikki]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Va}}" | [[Provence Sector|Provence]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Va}}" | [[Windhorn Sector|Windhorn]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Va}}" | [[Meshan Sector|Meshan]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Va}}" | [[Mendan Sector|Mendan]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Va}}" | [[Amdukan Sector|Amdukan]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Va}}" | [[Arzul Sector|Arzul]]
 +
|-
 +
! 1
 +
| style="color: #000; background-color: #{{Allegiance colors|Zh}}" | [[Foreven Sector|Foreven]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Spinward Marches Sector|Spinward Marches]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Deneb Sector|Deneb]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Corridor Sector|Corridor]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Vland Sector|Vland]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Lishun Sector|Lishun]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Antares Sector|Antares]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Empty Quarter Sector|Empty Quarter]]
 +
| [[Stars End Sector|Stars End]]
 +
|-
 +
! 0
 +
| [[The Beyond Sector|The Beyond]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Trojan Reaches Sector|Trojan Reaches]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Reft Sector|Reft]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Gushemege Sector|Gushemege]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Dagudashaag Sector|Dagudashaag]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Core Sector|Core]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Fornast Sector|Fornast]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Ley Sector|Ley]]
 +
| [[Gateway Sector|Gateway]]
 +
|-
 +
! -1
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Touchstone Sector|Touchstone]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Riftspan Reaches Sector|Riftspan Reaches]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Verge Sector|Verge]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Ilelish Sector|Ilelish]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Zarushagar Sector|Zarushagar]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Massilia Sector|Massilia]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Delphi Sector|Delphi]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Glimmerdrift Reaches Sector|Glimmerdrift Reaches]]
 +
| [[Crucis Margin Sector|Crucis Margin]]
 +
|-
 +
! -2
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Afawahisa Sector|Afawahisa]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Hlakhoi Sector|Hlakhoi]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Ealiyasiyw Sector|Ealiyasiyw]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Reaver's Deep Sector|Reaver's Deep]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Daibei Sector|Daibei]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Diaspora Sector|Diaspora]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Old Expanses Sector|Old Expanses]]
 +
| [[Hinterworlds Sector|Hinterworlds]]
 +
| [[Leonidae Sector|Leonidae]]
 +
|-
 +
! -3
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Karleaya Sector|Karleaya]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Staihaia'yo Sector|Staihaia'yo]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Iwahfuah Sector|Iwahfuah]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Dark Nebula Sector|Dark Nebula]]
 +
| style="color: #000; background-color: #{{Allegiance colors|So}}" | [[Magyar Sector|Magyar]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Im}}" | [[Solomani Rim Sector|Solomani Rim]]
 +
| style="color: #000; background-color: #{{Allegiance colors|So}}" | [[Alpha Crucis Sector|Alpha Crucis]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Hv}}" | [[Spica Sector|Spica]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Hv}}" | [[Phlask Sector|Phlask]]
 +
|-
 +
! -4
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Etakhasoa Sector|Etakhasoa]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Aktifao Sector|Aktifao]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Uistilrao Sector|Uistilrao]]
 +
| style="color: #000; background-color: #{{Allegiance colors|As}}" | [[Ustral Quadrant Sector|Ustral Quadrant]]
 +
| style="color: #000; background-color: #{{Allegiance colors|So}}" | [[Canopus Sector|Canopus]]
 +
| style="color: #000; background-color: #{{Allegiance colors|So}}" | [[Aldebaran Sector|Aldebaran]]
 +
| style="color: #000; background-color: #{{Allegiance colors|So}}" | [[Neworld Sector|Neworld]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Hv}}" | [[Langere Sector|Langere]]
 +
| style="color: #000; background-color: #{{Allegiance colors|Hv}}" | [[Drakken Sector|Drakken]]
 +
|}
 +
 
 +
The following key helps to explain the [[Charted Space]] Table:
 +
* Red (Pink) Sectors: Mostly Imperial-Controlled
 +
* Yellow: [[Aslan Hierate|Aslan]]
 +
* Green: [[Vargr Extents|Vargr]]
 +
* Purple: [[Hive Federation|Hiver]]
 +
* Orange: [[Solomani Confederation|Solomani]]
 +
* Blue: [[Zhodani Consulate|Zhodani]]
 +
* Clear: ([[Balkanized Space]]). No major polity and/or dominant polity.
 +
 
 +
== References ==
 +
{{Advanced}}
 +
{{Sources
 +
| {{Ludography cite|name=Beltstrike|version=Classic Traveller|page=10}}
 +
| {{Ludography cite|name=The Traveller Book|page=156}}
 +
| {{Ludography cite|name=Vilani & Vargr|page=}}
 +
| {{Ludography cite|name= Marc Miller's Traveller |page= 186}}
 +
|[https://web.archive.org/web/20160313121509/http://dmckinne.winterwar.org/sector.html Don McKinney's Sector Sources] (Last updated in 2009)
 +
}}
 +
 
 +
{{LE|Astrography|Metric}}

Latest revision as of 23:56, 17 August 2025

Comp-Prog-Dav-R-Deitrick-Starter-Trav-Page-16 16-July-2018a.jpg

A Sector is an astrophysical co-ordinate system applied to Charted Space.

Description (Specifications)[edit]

This is a mapping unit in astrography equal to sixteen subsectors.

  • Typical density is 350 to 650 worlds per sector.

Sector Nomenclature[edit]

Sectors are named, and several synonyms are in common use, including:

  • March (or Marches),
  • Region,
  • Reach (or Reaches),
  • Quadrant (but see here), and
  • Matrix.

The Spinward Marches, for example, is a sector.

Sector Quadrants[edit]

While not enforced, the IISS has been using a system of quadrants (four subsectors each) to further subdivide astrographic sectors. Terran Greek lettering is used to mark these quadrants: Alpha, Beta, Delta, and Gamma.

This terminology was developed after many of the core sectors of the Third Imperium were already established; in these areas, it is far more common to hear subsectors referred to by their associated duchy.

History & Background (Dossier)[edit]

The mighty Ziru Sirka originated the sector astrography system. As a giant interstellar empire considerably more advanced than its neighbors, it conquered much of Charted Space. What the Romans are to Terran history is what the ancient Vilani are to the history of Charted Space -- they came, saw, and conquered, and their subjective partitions of space became the standards for astrography. When non-Vilani traders adopted the system, it truly became cemented as the most widely adopted system of interstellar astrography used within the known galaxy.

Not all interstellar polities use the Vilani sector system internally, but they all provide traders with sector-compatible star charts to facilitate trade. Even some of the newest races to Charted Space have quickly adopted the system. Profit is a powerful motivator. Even the Terrans who conquered the Ziru Sirka were forced to adopt this Vilani astrographic adaptation.

Charted Space Overview[edit]

As a rough means of comparing size, the sector counts of the large interstellar states and areas of settlement are:

Sectors of the Major Races in Charted Space
Polity (Government) Society (People) Sectors Remarks
Third Imperium Imperial & Vilani 19 None
Aslan Hierate Aslan 15 None
Hive Federation Hiver 11 None
Two Thousand Worlds K'kree 09 None
Vargr Extents Vargr 09 None
Zhodani Consulate Zhodani Humaniti 08 None
Solomani Confederation Solomani Humaniti 05 None
Droyne Oytrip Yatroy Droyne Interspersed None

Notes: Several sectors are known by other names (by non-Imperial races). Strangely enough they use the same co-ordinate system.

  • The earliest known use of the term "sector" was among the Vilani, who used a slightly smaller 'parsec', compared to the current, Solomani-derived parsec.
  • The library refers to all sectors with the word Sector, thus Riftspan Reaches, or Dark Nebula are known as Riftspan Reaches Sector or Dark Nebula Sector in Library Data entries even though the former name is used in normal discussion.
  • Please see Sector Map and Sectors for an alphabetical listing of all sectors, and alien toponyms (names) for those sectors.

Charted Space Table[edit]

The following table lists the Sectors near the Imperium; see articles on the other empires for sectors in their Domains, and Subsector Map for a map of allegiances by subsector.

Sectors Near the Imperium
-5 -4 -3 -2 -1 0 1 2 3
2 Ziafrplians Gvurrdon Tuglikki Provence Windhorn Meshan Mendan Amdukan Arzul
1 Foreven Spinward Marches Deneb Corridor Vland Lishun Antares Empty Quarter Stars End
0 The Beyond Trojan Reaches Reft Gushemege Dagudashaag Core Fornast Ley Gateway
-1 Touchstone Riftspan Reaches Verge Ilelish Zarushagar Massilia Delphi Glimmerdrift Reaches Crucis Margin
-2 Afawahisa Hlakhoi Ealiyasiyw Reaver's Deep Daibei Diaspora Old Expanses Hinterworlds Leonidae
-3 Karleaya Staihaia'yo Iwahfuah Dark Nebula Magyar Solomani Rim Alpha Crucis Spica Phlask
-4 Etakhasoa Aktifao Uistilrao Ustral Quadrant Canopus Aldebaran Neworld Langere Drakken

The following key helps to explain the Charted Space Table:

References[edit]

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.
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