Main

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

Please see Rift for a related article.
Please see Astrography and Charted Space for related information.

Description (Specifications)

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.

History & Background

Many such groupings of worlds exist in the Imperium.

Listing of Mains: 1116

Greater Mains (Blue & Cyan Lines: 51+ destinations BTN: 11-12+)

Star systems on long (51 or more stars) mains. Most multi-sector and single-sector mains are greater mains. High economic and trade activity (interstellar traffic). Prominent examples include:

Antares Main originating in the Antares Sector
- Fornast Branch
Aslan Main
Dagudashaag Main
- Asimidiske branch
Imperial Road
Liasdi Main
Lishun Main
Rim Main
Spinward Main in the Spinward Marches
Sylean Main in Core Sector
Vilani Main centered in the Vland Sector
- Mimu Branch
- Shurgi Main
Vland Main
- Shurgi Main
- Vilani Run

Lesser Mains (Green & Yellow Lines: 11-50 destinations BTN: 9-10)

Star systems on short (11 - 50 stars) mains. Many subsector mains are lesser mains. Moderate economic and trade activity (interstellar traffic). Other examples include:

Alike Main
Alurzan Loop
- Libert Main
Boötean Main
Celepina-Jae-Tellona Link
Corridor Main
Deneb Main
- Sabine Backwater (Trace)
Derri Main
Dikhari Main
Drinsaar Loop (Main)
- Scotian Nexus
Florian Main
- Florian Corridor
- Hierate Route
- Nora'a Spur
Fulacin-Porozlo Route
Ganad Main
Gold Road
Gushemege Main
Imaka Ring
Khavle Main
Laraa Main
Lishun-Menden Main
Medurma Main
Mendan Main
Midway
Oulpath
Sabinar Main
Shumduur Connector
Sharshuda Long also known as Leyline
Sindalian Main
- Florian Route
Snogsta Main
Spas Main
Sydymic Main
Tharrynra Main
Thicket Run
Ushamla Main
Vegan Main

Micro Mains (Red & Pink Lines: 0-10 destinations BTN: 7-8)

Star systems on short (0 - 10 stars) mains. Many subsector mains are lesser mains. Low economic and trade activity (interstellar traffic).

Arms, Branches, Traces, Clusters & Others

Star systems with few if any significant connections to any main. May be subsets of larger mains. Most of these astrographic features are located in just one or two subsectors. Low economic and trade activity (interstellar traffic). Other routes attached to mains include:

Arms & Branches:

Traces & Clusters:

Other:

Worlds & Sectors (Astrography)

No information yet available.

Transportation Mains of Charted Space: 1116

Key

Yellow Dots: Star systems on long (51 or more stars) mains. High economic and trade activity.
- Corresponds with: Greater Mains (Blue & Cyan Lines: 51+ destinations BTN: 11-12+)
Blue Dots: Star systems on short (11 - 50 stars) mains. Moderate economic and trade activity.
- Corresponds with: Lesser Mains (Green & Yellow Lines: 11-50 destinations BTN: 9-10)
Green Dots: Star systems not on any main (0 - 10 stars). Low economic and trade activity.
- Corresponds with: Micro Mains (Red & Pink Lines: 0-10 destinations BTN: 7-8)
- No trade routes BTN 1-6
Red Lines: borders. Political borders.
Bright Blue Grid: sector borders. Organizational borders.
Dim Blue Grid: subsector borders. Organizational borders.

References & Contributors (Sources)

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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.

MegaTraveller Imperial Encyclopedia
Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science