Osem (world)

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

Osem/Farin (Halcyon 0513)
Classic Era (1115)
StarportD Poor: No Construction, Minor Repair, Unrefined fuel
Size2 Small (3,200 km, 0.10g - 0.17g)
Atmosphere1 Vacuum (trace)
Hydrographics3 Wet World 30%
Population4 Moderate (30 thousand)
Government5 Feudal Technocracy
Law6 Moderate Law (no firearms except shotguns)
Tech Level9 Early Stellar (fusion)
See also UWP
System Details
Primary M6 V
Planetoid Belts 1
Gas Giants 1

Osem is an icy, 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.

Monostellar System[edit]

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

M6 V

Primary Main Sequence 0.302 2000 - 2800 0.006
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.00297 0.00615 0.06 - 0.1 0.297 2.97
Orbit #  *  *  * 0 5

System Data[edit]

Ely-Osem System[edit]

The primary is Ely, a dim red main sequence star. It has a luminosity of 0.0055 Sols, a mass of 0.302 Sols, and a diameter of 443,500 km. (I) a vacuum worldlet, (II) a thin atmosphere radworld, (III) a sparse stony planetoid belt, (IV) Tarquin, a ringed small gas giant: (IVc) Osem is its outer satellite and is designated the mainworld, (V) a trace atmosphere iceworld, (VI) a vacuum iceworld, and (VII) a vacuum worldlet form the outer system. Many of the worlds retain satellites.

(IV) Tarquin[edit]

(IV) Tarquin is a small gas giant that orbits Ely at a mean distance of 0.95 AU, within the outer system, and has an orbital period of 1 year 250 days. It has a diameter of 37,000 km and is a pale green colour. It retains a family of three major satellites of which the outer, (IVc) Osem, is designated the mainworld.

Mainworld Data[edit]

(IVc) Osem[edit]

(IVc) Osem is the third of the four major moons of (IV) Tarquin and is designated the mainworld. It orbits Tarquin at a mean distance of 50 Diameters (1.85 million km), within the outer zone. It has an orbital period of 45 days 14 hours: it is tidally locked to Tarquin. The axial tilt is 5 degrees relative to Tarquin. Osem has a diameter of 8,309 km, a density of 5.42 g/cm³, and a surface gravity of 0.52 G. Tidal stresses generated by the gravitational pull of Tarquin cause frequent geological activity. Its atmosphere is rated as Trace, with a mean surface pressure of 0.023 bar and a composition of 93% carbon dioxide (CO2), 5% nitrogen (N2), 1% methane (CH4), and 1% argon (Ar), azane (NH3), hydrogen (H2) and other trace gases. Approximately 27% of the surface is covered in sheets of water-ice and frozen gases. Mean surface temperature: –135°C.

Mainworld Geography and Topography[edit]

Total surface area: 217 million km², Land surface area: 158 million km², Ice surface area: 59 million km².

Native Lifeforms[edit]

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

History & Background (Dossier)[edit]

World starport[edit]

Osem has a Class D Starport, a poor quality installation which has few of the expected amenities. There is unrefined fuel for starships and a limited variety of ship provisions. There is no shipyard of any kind, but there may be parts and technical support for doing minor services and repair. Ports of this classification generally consist of only a downport, unless this is a trade port or system with an hostile environment mainworld.

World technology level[edit]

Osem possesses a Technology Level of TL–9.

  • Common Communication technologies for this TL include: Fiber optics and satellite communication and data networks.
  • Common Power Generation technologies for this TL include: Early fusion power.
  • Common Transportation technologies for this TL include:
    • Land: Ultra high-speed trains and early grav vehicles.
    • Water: High efficiency sailcraft, multihulled seacraft, improved artificial gears.
    • Air: Tiltrotorcraft, exotic VTOL's, PARWIG, and rocket-assisted suborbitals.
    • Space: SSTO spacecraft, early military spacecraft (System Craft), and interstellar STL starships
    • FTL: Prototype Jump Drive-1.

World government[edit]

Osem is governed by a Feudal Technocracy. Society divides itself based on the technical requirements of the society. Each of these functions are granted as a fief to an individual or group. Leadership of these fiefs determines the head of the government.

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 31,000

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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