Ammert (world)

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

Ammert/Alasim (Halcyon 0638)
Classic Era (1115)
StarportE Frontier - no facilities
Size5 Medium (8,000 km, 0.40g - 0.57g)
Atmosphere7 Standard (tainted)
Hydrographics4 Wet World 40%
Population6 Moderate (7 million)
Government5 Feudal Technocracy
Law6 Moderate Law (no firearms except shotguns)
Tech Level3 Pre-Industrial (basic science)
See also UWP
System Details
Primary F6 V
Planetoid Belts 0
Gas Giants 3
Jump map from [1]

Ammert is an agricultural, nonindustrial world still lacking adequate means to expand its economy.

Astrography and Planetology[edit]

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

Monostellar System[edit]

Ammert Monostellar System
Star Name Hierarchy Color Classification Remarks
Ammert Primary Yellow-White F6 V

System Data[edit]

Holben-Ammert System[edit]

The primary is Holben, an ordinary white main sequence star. It has a luminosity of 3.042 Sols, a mass of 1.248 Sols, and a diameter of 1.845 million km. The inner system consists of (I) a vacuum worldlet, (II) a trace atmosphere inner world, (III) a dense atmosphere stormworld, and (IV) a corrosive atmosphere inferno world. (V) Ammert orbits within the habitable zone and is designated the mainworld. (VI) a thin atmosphere hospitable world, (VII) a small gas giant, (VIII) an exotic atmosphere bigworld, (IX) a large gas giant, and (X) a ringed gas giant. Many of the worlds in the system retain satellites.

Mainworld Data[edit]

(V) Ammert[edit]

(V) Ammert is designated the mainworld. It orbits Holben at a mean distance of 1.62 AU (242.4 million km), within the habitable zone. It has an orbital period of 1 year 309 days and a rotation period of 29.5 hours. The axial tilt is 23 degrees. Ammert has a diameter of 8,520 km, a density of 4.98 g/cm³, and a surface gravity of 0.61 G. The world is geologically active. Its atmosphere is rated as Standard, Tainted, with a mean surface pressure of 1.09 bar and a composition of 78% nitrogen (N2), 21% oxygen (O2), and 1% argon (Ar), water vapor (H2O), carbon dioxide (CO2), ozone (O3), neon (Ne) and other trace gases. The atmospheric taint is caused by trace contaminants of organic origin that produce a psychological response in humans. Approximately 43% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.25m. Mean surface temperature: 28°C. The climate is rated as Temperate-Warm and experiences minor seasonal changes during the local year. The atmosphere is dynamic and powerful weather systems driven by the star and the seas sweep across the globe.


Ammert retains a single natural satellite, a very thin atmosphere hospitable world named Prosett:

(Va) Prosett (UWP Y323000-0, orbiting at 11 Diameters/94,000 km)

Mainworld Geography and Topography[edit]

Total surface area: 228 million km², Land surface area: 130 million km², Water surface area: 98 million km².

Native Lifeforms[edit]

Holben-Ammert System[edit]

Ammert, the mainworld, has extensive, abundant native life, with complex organisms inhabiting every ecological niche. Their metabolic functions drive the process of atmospheric renewal.

  • Prosett, Ammert's temperate marginally hospitable moon, has extensive native life, consisting of minute multicellular organisms that can be found in most ecological niches. Their metabolic functions drive the process of atmospheric renewal.

The cold marginally hospitable world lying in orbital position (VI) (within the H+ region of the outer system) has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in any location where they can find even a minimal trace of shelter and warmth. Their metabolic functions maintain the process of atmospheric renewal.

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

History & Background (Dossier)[edit]

No information yet available.

World starport[edit]

Ammert has a frontier quality starport.

World technology level[edit]

Ammert possesses a Technology Level of TL–3.

  • Common Communication technologies for this TL include: Printing press, the mechanical telegraph, and the first audio recordings.
  • Common Power Generation technologies for this TL include: Coal or other simple hydrocarbon fuels and early steam engines.
  • Common Transportation technologies for this TL include:
    • Land: Bicycles and early steam coaches with advanced roadways.
    • Water: Advanced sailing and early steam engine ships.
    • Air: The earliest hot air balloons.

World government[edit]

Ammert 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]

No information yet available.

World economy[edit]

No information yet available.

Trade data[edit]

No information yet available.

World demographics[edit]

Population 6,820,000

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