Penedur (world)

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This is a world-system under construction and is currently being input-programmed into the Traveller RPG Wiki.

Penedur/Cradle (Halcyon 1009)
Classic Era (1115)
StarportC Routine: No Construction, Major Repair, Unrefined fuel
Size5 Medium (8,000 km, 0.40g - 0.57g)
Atmosphere3 Vacuum (very thin)
Hydrographics2 Dry World 20%
Population7 Moderate (70 million)
Government5 Feudal Technocracy
Law6 Moderate Law (no firearms except shotguns)
Tech Level7 Pre-Stellar (electronics)
See also UWP
System Details
Primary M9 V
Planetoid Belts 2
Gas Giants 4
Jump map from [1]

Penedur is a poor, nonindustrial world.

  • As a nonindustrial world, it requires extensive imports of outside technology to maintain a modern, star-faring society. The need to import most manufactured and high technology goods drives the price of these goods up in the open market.
  • This world has few prospects for economic development.
  • It is a member of the Unity of Sed in the Cradle Subsector of Halcyon Sector, which is part of the Distant Fringe.

Astrography and Planetology[edit]

No information yet available.

Monostellar System[edit]

Penedur Monostellar System
Star Name Hierarchy Color Classification Remarks
Penedur Primary Red M9 V

System Data[edit]

Modon-Penedur System[edit]

The primary is Modon, a dim red main sequence star. It has a luminosity of 0.001 Sols, a mass of 0.215 Sols and a diameter of 280,000 km. (I) a sparse stony planetoid belt, (II) Penedur, designated the mainworld, (III) a large gas giant, (IV) a ringed large gas giant, (V) a large gas giant, (VI) an exotic atmosphere bigworld, (VII) a vacuum iceworld, (VIII) a small gas giant, (IX) a vacuum iceworld, and (X) a dense icy planetoid belt form the outer system. Many of the worlds retain satellites.

Mainworld Data[edit]

(II) Penedur[edit]

(II) Penedur is designated the mainworld. It orbits Modon at a mean distance of 0.43 AU (64.3 million km), within the outer system. It has an orbital period of 222 days 3 hours and a rotation period of 17.7 hours. The axial tilt is 11 degrees. Penedur has a diameter of 7,584 km, a density of 7.36 g/cm³, and a surface gravity of 0.79 G. The world is geologically active. Its atmosphere is rated as Very Thin, Tainted, with a mean surface pressure of 0.29 bar and a composition of 78% nitrogen (N2), 21% oxygen (O2), and 1% argon (Ar), water vapor (H2O), carbon dioxide (CO2), neon (Ne) and other trace gases. The atmospheric taint is caused by high levels of background radiation and airborne radioactive dust: emission rates exceed 15 rads per hour. Approximately 18% of the surface is covered in lakes and seas of liquid water: average tidal ranges exceed 0.25m. Mean surface temperature: -98°C. The atmosphere is sluggish and weak weather systems driven by the star drift across the globe. The climate is seasonal.


Penedur retains a single natural satellite, an ice-capped vacuum worldlet named Norgan:

(IIa) Norgan (UWP H201000-0, orbiting Penedur at 30 Diameters/228,000 km)

Mainworld Geography and Topography[edit]

Total surface area: 181 million km², Land surface area: 148 million km², Water surface area: 33 million km².

  • Concentrations of radioactive material within the lithosphere of the world generate enough heat to keep the surface water in a liquid state, which in turn heats the surface regions around the waters to as high as -20°C.

Native Lifeforms[edit]

Penedur, the mainworld, has extensive native life, consisting of extremophile single-celled cyanobacteria-equivalents that can be found in every radiologically active area on the world. Their metabolic functions drive the process of atmospheric renewal.

History & Background (Dossier)[edit]

World starport[edit]

Penedur has a routine quality starport.

  • A Class-C Starport Facility has minimal if any shipyards and can only perform extremely limited repair work.
  • This facility has many very skilled personnel who can perform surprisingly sophisticated repair work despite the limited facilities.
  • This facility has refueling infrastructure and limited refining capabilities. One may purchase unrefined fuel here.
  • Starports of this class rarely have both a Lowport and a Highport.

World technology level[edit]

Penedur possesses a Technology Level of TL–7.

  • Common Communication technologies for this TL include: Early video and early satellite communication networks.
  • Common Power Generation technologies for this TL include: Early fuel cells, solar energy, and geothermal power sources.
  • Common Transportation technologies for this TL include:
    • Land: Improved automobiles, hovercraft, and bullet trains.
    • Water: Hydrofoils and early triphibians.
    • Air: Hang gliders and supersonic jets.
    • Space: Deep space probes and interplanetary spacecraft.

World government[edit]

Penedur has a Feudal Technocracy government.

  • It is a government by specific individuals for those who agree to be ruled. Relationships are based on the performance of technical activities which are mutually-beneficial.
  • The typical power source of this government is an Oligarchy.
  • The typical power structure of this government is a Hegemony.

World Military[edit]

Local Defense Forces (approximately 300,000 personnel).

Unity of Sed militia forces (approximately 2.2 million personnel).

World Economy[edit]

  • Resources: 6 (Few)
  • Labor: 6 (Millions)
  • Infrastructure: 8 (Generally available)
  • Efficiency: −3 (Poor)

Trade Data[edit]

No information yet available.

World Demographics[edit]

Population 73,250,000

World Culture[edit]

  • Homogeneity: 5 (Harmonious)
  • Acceptance: 6 (Aloof)
  • Strangeness: 9 (Extremely confusing)
  • Symbols: 8 (Somewhat abstract)

Historical data[edit]

No information yet available.

World timeline[edit]

No information yet available.

UWP listing[edit]

No information yet available.

References & Contributors / Sources[edit]

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  1. "Jump Map API" and map location from