Mirriam (SM 1315) (world)

Mirriam/Vilis (Spinward Marches 1315)
Classic Era (1116)	E572300-8 Starport E Frontier - no facilities Size 5 Medium (8,000 km, 0.40g - 0.57g) Atmosphere 7 Standard (tainted) Hydrographics 2 Dry World 20% Population 3 Low (1 thousand) Government 0 No Government structure Law 0 No Law Tech Level 8 Pre-Stellar (superconductors)
See also	UWP
System Details
Primary	F5 V
Planetoid Belts	1
Gas Giants	0

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Jump map from Travellermap.com

Mirriam is a low-population hellworld with a population less than 10,000 sophonts struggling to survive in an inhospitable environment .

• Hellworlds often offer daily, and sometimes even hourly, life-threatening situations to their inhabitants.
• It is a member of the Third Imperium in the Vilis 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.
• This world has an Imperial Naval Base, capable of handling warships.

Description (Astrography & Planetology)

Stellar Data

Mirriam has a solitary primary star.

• It is a white main sequence.

Mirriam has a solitary primary star.

Primary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	F5 V	Main Sequence (Dwarf)		1.33	6350 - 6550	2.71319
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0137	0.1366	1.49 - 2.6	1.37	13.7
	Orbit #	*	0	4	4	7
	Remarks

System Data

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

• The mainworld.
• x9 secondary rocky worlds.
• x1 planetoid belt.

Mainworld Data

Mainworld Size (S)

Mirriam is a Meso World between 7,200km and 8,800km in diameter. The world has a standard gravity between 0.4G and 0.57G. The horizon will appear about 4km away.

Mainworld Atmosphere (A)

Mirriam has a pressure of 0.71 to 1.49 atmospheres. While a Standard Atmosphere does not require survival gear this atmosphere also contains an unusual taint such as disease, a hazardous gas mix, pollutants, or sulfur compounds which requires the use of a Filter Mask. Some taints may require more protective equipment. TL–3 or more advanced survival gear is required to settle this world.

• It experiences moderate temperatures.
• The atmospheric taint is an endemic airborne disease of low virulence that causes unpleasant flu-like symptoms in many sophonts.

Mainworld Hydrosphere (H)

Mirriam has 15-25% of its surface covered by liquid water or ice. There may be a few small seas. Wilderness refueling is possible. Water for the inhabitants needs to be imported and extensively recycled. These worlds are Hell Worlds or Poor Worlds depending on their atmosphere.

• Much of the surface is arid.

Satellites

Mirriam retains a single vacuum moon.

• It orbits once every few days.
• It is the location of the system's Naval Base.

Mainworld Geography and Topography

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

(Blank map, predominantly dry world.)

History & Background (Dossier)

On Mirriam’s single moon is the vast naval base, a heavily armored structure defended by a ring of deep-site meson guns and missile emplacements. The base has its own defense squadrons – fighters, system-defense boats and a few powerful monitors – to prevent a repeat of the events late in the Fifth Frontier War, when a Zhodani squadron made a fast raid while the fleet was engaged elsewhere.

World Starport (St)

Mirriam 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.

• The world is host to a Naval Base.

Elements of the 193rd Fleet are hosted at the Naval base.

World Population (P)

Mirriam has a population of 1,000 sophonts (thousands).

• This is a Low Population World and the population would be too low to sustain itself without a little outside assistance. This may represent the home base of a sizable but mostly transient population such as the base of a major starship expedition, the last generation of a dying colony, the first generation of a new colony, or a large outpost that will probably evolve into a colony if not stopped.

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)

Mirriam 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)

Mirriam has no central government or substantial government apparatus; an Anarchy. The largest governmental structure would be a family, tribe, or single clan. The largest group will be between 50 and 100 individuals, and there may be dozens to hundreds of them. This governmental structure can be stable over long periods of time if the population remains small or geographically separated.

World Law (L)

Mirriam has no law in practice. It is an Anarchy. On many worlds, this by itself justifies an Amber Zone advisory. There are few laws, covering only important areas. There may be few or no law enforcement officers, the expectation is citizens will bring law breakers to the attention of the Judicial system. Legal proceedings will be fast, with few people involved. For interactions outside of the framework of the laws, cultural norms dominate.

Imperial Landed Nobility

Mirriam, 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: 6 (few)
• Labor: 2 (hundreds)
• Infrastructure: 0 (non-existent)
• Efficiency: -5 (extremely poor)

World Culture

• Heterogenity: 1 (monolithic)
• Acceptance: 1 (extremely xenophobic)
• Strangeness: 1 (very typical)
• Symbols: 3 (very 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.

Later Historical Eras

History: New Era

Disease-ridden Mirriam was placed under military control after the Quarantine. The system's naval base had been a strategically important facility during the Frontier Wars, and the Regency wanted to prevent the installment of Arden-associated terrorists and rabble rousers within the population. The world is not a popular duty station for naval personnel.

---

IISS GURPS Astrographics Survey

1315 Mirriam (Imperial)

Starport: Class I - Naval Base.

Diameter: 4,014 miles (6,400 km).
Atmosphere: Standard oxygen-nitrogen tainted by endemic airborne diseases of low virulence.
Hydrographics: 24%.
Climate: Normal.
Population: 1,298.
Government: Family/Tribal.
Control Level: 0.
Tech Level: 8.
World Trade Number: 2.

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), 14-15.
• 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), 40-41. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 65.
• Mike West. The Spinward States (Avenger Enterprises, 2008), 100. (UWP only)
• Martin Dougherty. The Spinward Marches (Mongoose Publishing, 2008), .
• Gregory P. Lee. Cirque (Greylock Publishing, 2014), 163-166.
• Martin Dougherty. Behind the Claw (Mongoose Publishing, 2019), 61-66. (UWP only)