Herome (world)

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

Herome/Orowan (Halcyon 1835)
Classic Era (1115)
StarportE Frontier - no facilities
Size2 Small (3,200 km, 0.10g - 0.17g)
Atmosphere0 Vacuum
Hydrographics1 Dry World 10%
Population2 Low (300)
Government1 Company/Corporation
Law4 Moderate Law (no light assault weapons)
Tech Level8 Pre-Stellar (superconductors)
See also UWP
System Details
Primary M7 V BD
Planetoid Belts 1
Gas Giants 1

Herome is an icy, low-population vacuum world, with a population less than 10,000 sophonts in population size, warranting hazardous environment precautions.

Astrography and Planetology[edit]

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

Binary Solar System[edit]

Herome Binary Star System
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)

M7 V

Primary Main Sequence 0.273 1900 - 2700 0.004
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.0026 0.00525 0.05 - 0.08 0.26 2.6
Orbit #  *  *  * 0 5
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)


Secondary Brown Dwarf 0.0276 950 - 1250 0
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.00092 0.00038 0 - 0.01 0.092 0.92
Orbit #  *  *  *  * 3
orbiting primary at 21.5 AU

System Data[edit]

Jott-Herome System[edit]

The primary is Jott, 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 vacuum worldlet, (II) a very thin atmosphere radworld, (III) Dogon, a small gas giant: (IIIa) Herome is its only major moon and is designated the mainworld, and (IV) a vacuum worldlet form the outer system. Only the gas giant retains a satellite.

Asa Subsystem[edit]

The companion is Asa, a magenta-coloured L-type brown dwarf lying approximately 21.5 AU (orbital position (IX), 3.21 billion km) from Jott and with an orbital period of 190 years 292 days. It is not luminous, it has a mass of 0.063 Sols and a diameter of 60,000 km. Asa retains no planetary bodies.

(III) Dogon[edit]

(III) Dogon is a small gas giant that orbits Jott at a mean distance of 0.65 AU (97.2 million km) and has an orbital period of 1 year 1 day. It has a diameter of 24,000 km and is a bland pale blue colour. It retains a single major satellite, (IIIa) Herome, designated the mainworld.

Mainworld Data[edit]

(IIIa) Herome[edit]

(IIIa) Herome is the only major moon of (III) Dogon and is designated the mainworld. It orbits its parent world at a mean distance of 14 diameters (336,000 km), with an orbital period of 35 days 5 hours: it is tidally locked to Dogon. It has an axial tilt of 6 degrees. Herome has a diameter of 3,456 km, a density of 4.18 g/cm³ and a surface gravity of 0.21 G. Tidal stresses caused by the gravitational pull of Dogon cause frequent geological activity. Its atmosphere is rated as Vacuum. Around 9% of the surface is covered in sheets of water ice. Mean surface temperature: -131°C.

Mainworld geography and topography[edit]

Total surface area: 37.5 million km², Land surface area: 34.1 million km², Ice surface area: 3.4 million km².

Native lifeforms[edit]

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

History & Background (Dossier)[edit]

No information yet available.

World starport[edit]

Herome has a Class E Starport, a frontier quality installation with few 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 a downport.

World technology level[edit]

Herome 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 (System Craft).

World government[edit]

Herome is governed by a Corporate Polity with a single corporation with a typical corporate structure as a government. A company town, or world. The typical corporate run world usually has a single purpose. Examples include mining, agriculture, or other kinds of resource extraction. But rather than a simple base of operations, there are facilities for housing workers and their families including hospitals, schools, and other infrastructure. How, or if, the children of the workers are incorporated into the workforce varies with companies. The corporation running the world may be a subsidiary of a larger interstellar corporation.

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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