Heroni (SM 3017) (world)

Heroni/Rhylanor (Spinward Marches 3017)
Classic Era (1116)	E7A0614-8 Starport E Frontier - no facilities Size 7 Medium (11,200 km, 0.70g - 0.94g) Atmosphere A Exotic Hydrographics 0 Desert World 0% Population 6 Moderate (8 million) Government 1 Company/Corporation Law 4 Moderate Law (no light assault weapons) Tech Level 8 Pre-Stellar (superconductors)
See also	UWP
System Details
Primary	G5 V
Planetoid Belts	2
Gas Giants	0

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Jump map from Travellermap.com

Heroni is a nonindustrial hellworld with a population struggling to survive in an inhospitable environment.

• Hellworlds often offer daily, and sometimes even hourly, life-threatening situations to their inhabitants. Survivors often develop intense survival skills and tend to be grim realists.
• It requires extensive imports of outside technology to maintain a modern, star-faring society.
• It is a member of the Third Imperium in the Rhylanor Subsector of Spinward Marches Sector in the Domain of Deneb.
• This is a temperate world, with a climate of pleasant, average temperatures, considered to be an ideal or near-ideal environment by many different sophont species.
• Heroni is a member of the Spinward Main.

Description (Astrography & Planetology)

Stellar Data

Heroni has a solitary primary star.

• It is a yellow main sequence.

Heroni has a solitary primary star.

Primary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	G5 V	Main Sequence (Dwarf)		0.98	5600 - 5660	0.93173
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0091	0.0801	0.91 - 1.63	0.91	9.1
	Orbit #	*	*	3	3	7
	Remarks		None

System Data

The worlds of the system have been surveyed. They consist of:

• The mainworld.
• x5 secondary rocky worlds.
• x2 planetoid belts.

Mainworld Data

The mainworld orbits within the star's Habitable Zone.

• It lies within the zone's prime H region.
• It receives moderate levels of stellar energy.

Mainworld Size (S)

Heroni is a Meso World between 10,400km and 12,000km in diameter. The world has a standard gravity between 0.7G and 0.9G. The horizon will appear about 4.7km away.

Mainworld Atmosphere (A)

Heroni has an Exotic Atmosphere and possesses an unusual gas mix which requires the use of oxygen tanks. Additionally, protective suits, while not necessary, are recommended. TL–8 or more advanced survival gear is required to settle this world.

• It experiences generally moderate temperatures.

The world has a dense nitrogen atmosphere with an extremely low percentage of oxygen (less than 4% by volume) and a significant carbon dioxide content (around 2%).

• Breathing the atmosphere without artificial assistance will cause nitrogen narcosis and hypoxemia.

Mainworld Hydrosphere (H)

Heroni has no free-standing water or ice on the surface. What little water or ice exists is heavily tainted with other substances, which makes it dangerous, corrosive, or toxic. Wilderness refueling isn't possible on this world. Water for the inhabitants needs to be imported and extensively recycled. These worlds are Hell Worlds.

Mainworld Geography and Topography

No centrally held map of the world exists within AAB Library Data records.

(Blank map, predominantly dry world.)

Native Lifeforms

Primitive exotic native life occupying a few specialist ecological niches. Its metabolic functions help drive the process of atmospheric renewal.

• Native lifeforms are thermophilic - they thrive in high temperatures and arid environments.
• They will rapidly die in environmental conditions suitable for humans.

History & Background (Dossier)

The mining equipment used on the planet's surface is imported and of a higher Tech Level than the mainworld could produce by itself.

World Starport (St)

Heroni 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 Population (P)

Heroni has a population of 8,000,000 sophonts (millions).

• This is a Nonindustrial World, too small to support the complete chain of production of most goods from start to finish.

Urbanization

In addition to the City of Heroni, the other major settlement on the world is Lunapi Ina.

Linguistic Topography

The following languages are most commonly heard:

• Anglic, one of the two official languages of the Imperium.
• Vilani, one of the two official languages of the Imperium.

World Technology Level (T)

Heroni 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 (G)

Heroni is governed by a Corporate Polity, having a single corporation with a typical corporate structure as a government. Essentially, this is 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.

The world is controlled by the corporation Heroni MinCorp.

World Law (L)

Heroni has a moderate law level with laws covering many areas of government and interaction. These laws are simple enough that most people can act as their own advocate, though for serious issues a professional is recommended. Law enforcement officials will be present, but not in great numbers. Light assault weapons, and anything more destructive, are typically regulated or prohibited.

Imperial Landed Nobility

Heroni, as a member world of the Third Imperium has a member of the Imperial Landed Nobility who acts as an Imperial representative to the world.

• It holds the estate of an Imperial knight.

Trade Data

• Importance: -3 (very unimportant)

World Economy

• Resources: A (abundant)
• Labor: 5 (hundreds of thousands)
• Infrastructure: 1 (extremely limited)
• Efficiency: -5 (extremely poor)

World Culture

• Heterogenity: 4 (harmonious)
• Acceptance: 3 (xenophobic)
• Strangeness: 3 (somewhat typical)
• Symbols: 6 (somewhat concrete)

World Timeline

Major events that have affected this world and the wider region that it lies within:

• The Year 0: the Third Imperium is founded.
• 300-420: the Imperial First Survey charts the system.
• 589-604: First Frontier War.
• 604-622: the Civil War.
• 615-620: Second Frontier War.
• 624: the Express Boat Network is established.
• 979-986: Third Frontier War.
• 995-1065: the Imperial Second Survey charts the system.
• 1065: the Second Survey is published. Information about the system becomes widely available.
• 1082-1084: Fourth Frontier War, also known as the False War.
• 1107-1110: Fifth Frontier War.

---

IISS GURPS Astrographics Survey

3017 Heroni (Imperial)

Starport: Class I.

Diameter: 6,868 miles (11,000 km).
Atmosphere: Exotic (very high nitrogen content, at levels sufficient to cause nitrogen narcosis in most humans).
Hydrographics: None.
Climate: Normal.
Population: 3.3 million.
Government: Corporate (Heroni MinCorp).
Control Level: 3.
Tech Level: 6.
World Trade Number: 3.

References & Contributors (Sources)

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.

• Marc Miller. The Spinward Marches (Game Designers Workshop, 1979), 30-31.
• Marc Miller. The Spinward Marches Campaign (Game Designers Workshop, 1985), 18-19.
• Marc Miller. Imperial Encyclopedia (Game Designers Workshop, 1987), 94-100. (UWP only)
• Rob Caswell. "Domain of Deneb: Sector Data." MegaTraveller Journal 3 (1992): 47-58. (UWP only)
• Dave Nilsen. The Regency Sourcebook (Game Designers Workshop, 1995), 43. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 109.
• Mike West. The Spinward States (Avenger Enterprises, 2008), 104. (UWP only)
• Martin Dougherty. The Spinward Marches (Mongoose Publishing, 2008), .
• Martin Dougherty. Behind the Claw (Mongoose Publishing, 2019), 74-79. (UWP only)