Gunn (world)

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Gunn/Sword Worlds (Spinward Marches 1429)
Milieu 1116
StarportE Frontier - no facilities
Size5 Medium (8,000 km, 0.40g - 0.57g)
Atmosphere4 Thin (tainted)
Hydrographics4 Wet World 40%
Population1 Low (60)
Government1 Company/Corporation
Law0 No Law
Tech Level8 Pre-Stellar (superconductors)
See also UWP
System Details
Primary M3 V
Worlds 9
Gas Giants 2
Planetoid Belts 0
Cultural Details
Government Company or Corporation
Law Level No law
Cultural Extension 1113
Army Size (BEs) 0
Economic Details
Technology Level 8
Economic Extension
Labor0Barren (6)
Infrastructure1 Extremely limited
Efficiency-5Extremely poor
Importance Extension -3
Resource Units 3
GWP (BCr) 0
World Trade Number 1
Trade Volume (MCr/year) 0
Starport Details
Classification Class-E
Port Size 0
Building Capacity (Tons) 0
Port employees 0
Port passengers (annual) 0

Gunn supports a population of fewer than 10,000 sophonts. This world is designated an Amber Zone with an environment, laws, customs, life forms, or other conditions make it dangerous to visitors. It is a member of Third Imperium in the Sword Worlds Subsector of Spinward Marches Sector and in the Domain of Deneb. Gunn, as a member world of the Third Imperium, holds the estate of an Imperial knight, a member of the Imperial Nobility charged with overseeing the world.

Astrography & Planetology[edit]

Gunn is a member of the Spinward Main.

Monostellar System[edit]

Gunn Monostellar System
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)

M3 V

Primary Main Sequence 0.3942 2300 - 3100 0.02
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.00404 0.01179 0.11 - 0.18 0.404 4.04
Orbit #  *  * 0 1 6
Periodic bouts of strong flare activity.

System Data[edit]

The worlds of the system have been surveyed. They consist of:

Orbital Data[2][edit]

The mainworld orbits within the star's Habitable Zone.

  • It lies within the zones colder outer H- region.
  • It receives lower levels of stellar energy.

Chart H- Region Mw.png

Geography and Topography[3][edit]

A basic map of Gunn, the nominated mainworld of the system, showing major bodies of water, large landmasses, major highland regions, and the polar icecaps.

Gunn World Map Basic.png


Gunn is a cold world.

  • The world experiences low temperatures.
  • Much of the surface is covered in glaciers, pack ice, and ice sheets.

Twilight Zone World Cold 01.jpg

History & Background (Dossier)[edit]

The entire population are the employees of Sternmetal Horizons, in the process of establishing a mining operation on the planet.

Gunn has practically no magnetic field, and is thus subject to unhealthily high levels of stellar radiation. Despite a lack of ferric and other magnetic metals, the world has substantial deposits of lead, tin, copper, rare earths and also some gemstones. Gunn is a frontier mining camp with a dangerous environment, hence the amber travel zone Travellers' Aid Society classification. [5]

References & Contributors (Sources)[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 Far Future Enterprises or by permission of the author. The page history lists all of the contributions.
  1. "Jump Map API" and map location from
  2. An unpublished factoid written by Alex Treacher / The Troubled Dark Campaign
  3. An unpublished factoid written by Alex Treacher / The Troubled Dark Campaign
  4. An unpublished factoid written by Alex Treacher / The Troubled Dark Campaign
  5. Martin DoughertyNeil Frier. Behind the Claw (Steve Jackson Games, 1998), 71.