Sector

A Sector is a astrophysical co-ordinate system applied to the galaxy. A sector is part of a Domain within the Imperium, and contains sub-sectors.

Mapping unit in astrography equal to sixteen subsectors. Average density 500 to 650 worlds per sector. Sectors are named, and several synonyms are in common use, including march (or marches), region, reach (or reaches), quadrant, and matrix. The Spinward Marches, for example, is a sector.

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

• The Imperium: 19.
• The Aslan Hierate: 15.
• The Hive Federation:11.
• The Two Thousand Worlds: 9.
• the Vargr Extents: 9.
• The Zhodani Consulate: 8.
• The Solomani Confederation: 5.

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 Entries even though the former name is used in normal discussion.

q.v. Sector Map

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 Far Future Enterprises or by permission of the author. The page history lists all of the contributions.

• Beltstrike
• The Traveller Book
• Vilani & Vargr

Sectors

See also Sectors for an alphabetical listing of all sectors, and alien names for those sectors.

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.

Red Sectors are Mostly Imperial Controlled, yellow Aslan, green Vargr , purple Hiver, orange Solomani and blue Zhodani:

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	Zarushagaar	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