Eeren (world)

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

Eeren/Veesene (Halcyon 2022)
Classic Era (1115)
StarportC Routine: No Construction, Major Repair, Unrefined fuel
Size2 Small (3,200 km, 0.10g - 0.17g)
Atmosphere1 Vacuum (trace)
Hydrographics1 Dry World 10%
Population6 Moderate (2 million)
Government7 Balkanization
Law8 High Law (controlled blades)
Tech Level8 Pre-Stellar (superconductors)
See also UWP
System Details
Primary M7 V M4 V
Planetoid Belts 2
Gas Giants 4
Jump map from [1]

Eeren is an icy, non-agricultural and nonindustrial world, whose surface is ice-capped and with nearly all of its water frozen.

Astrography and Planetology[edit]

This star system is detailed using the Fringian Variant System Description.

Binary Solar System[edit]

Eeren Binary Star System
Star Name Hierarchy Color Classification Remarks
Eeren Primary Primary Red M7 V
Eeren Companion Secondary Red M4 V

System Data[edit]

Nosata System[edit]

The primary is Nosata, a dim red main sequence star. It has a luminosity of 0.004 Sols, a mass of 0.273 Sols, and a diameter of 414,000 km. (I) a very thin atmosphere radworld, (II) a trace atmosphere iceworld, (III) an exotic atmosphere bigworld, (IV) a sparse icy planetoid belt, (V) a ringed large gas giant, (VI) a trace atmosphere iceworld, and (VII) a vacuum worldlet form the outer system. Most of the worlds retain satellites.

Mendezo-Eeren System[edit]

The companion is Mendezo, an ordinary red main sequence star lying approximately 2300 AU from Nosata. It has a luminosity of 0.0136 Sols, a mass of 0.3626 Sols, and a diameter of 551,000 km. (I) a vacuum worldlet, (II) a sparse icy planetoid belt, (III) Costyn, a small gas giant: (IIIa) Eeren is its only major moon and is designated the mainworld, (IV) a trace atmosphere iceworld, (V) a large gas giant, and (VI) a small ringed gas giant form the outer system. Many of the worlds retain satellites.

(III) Costyn[edit]

(III) Costyn is a small gas giant that orbits Mendezo at a mean distance of 0.71 AU (106.2 million km) and has an orbital period of 362 days 21 hours. It has a diameter of 33,000 km and is a mottled blue-green colour. It retains a single major satellite, (IIIa) Eeren, which is designated the mainworld.

Mainworld Data[edit]

(IIIa) Eeren[edit]

(IIIa) Eeren is the only major moon of (III) Costyn and is designated the mainworld. It orbits its parent world at a mean distance of 15 diameters (495,000 km), with an orbital period of 53 days 16 hours: it is tidally locked to Costyn. The axial tilt is 6 degrees. Eeren has a diameter of 2,608 km, a density of 5.72 g/cm³ and a surface gravity of 0.21 G. Tidal stresses caused by the gravitational pull of Costyn cause frequent geological activity. It retains an atmosphere rated as Trace, with a surface pressure of 0.07 bar and a composition of 98% nitrogen, 1% carbon dioxide, and 1% argon, methane, water vapor, neon and other trace gases. Around 10% of the surface is covered in a crust of water ice. Mean surface temperature: 110°C. The atmosphere is static and very weak weather systems, largely the result of volcanic outgassing, ghost across the globe. The climate is static.

Mainworld geography and topography[edit]

Total surface area: 21.4 million km², Land surface area: 19.3 million km², Water surface area: 2.1 million km².

Native lifeforms[edit]

No world in the Eeren system is known to have native life.

History & Background (Dossier)[edit]

No information yet available.

World starport[edit]

Eeren 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]

Eeren possesses a Technology Level of TL–8.

  • Common Communication technologies for this TL include: Fiber optics, improved telephones, and satellite communication and data networks.
  • Common Power Generation technologies for this TL include: Improved geothermal and improved batteries.
  • Common Transportation technologies for this TL include:
    • Land: Advanced automobiles.
    • Water: Triphibians and early artificial gills.
    • Air: Improved helicopters and hypersonic jets.
    • Space: Space shuttles, early space stations, and improved interplanetary spacecraft.

World government[edit]

Eeren has a Balkanized government.

  • No central ruling authority exists. Rival governments compete for control.
  • The typical power source of this government is a Balkanization.
  • The typical power structure of this government is a Confederation (Anarchy).

World military[edit]

No information yet available.

World economy[edit]

No information yet available.

Trade data[edit]

No information yet available.

World demographics[edit]

No information yet available.

World culture[edit]

No information yet available.

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