Lanth (world)

Milieu 1116 

Milieu 1116 A879533-B Starport A Excellent: Starship Construction, Overhaul, Refined fuel Size 8 Large (12,800 km, 0.80g - 1.08g) Atmosphere 7 Standard (tainted) Hydrographics 9 Wet World 90% Population 5 Moderate (700 thousand) Government 3 Self-Perpetuating Oligarchy Law 3 Low Law (no automatic weapons) Tech Level B Average Stellar (large starships)
See also	UWP
style="width: 220px; height: 250px;" Jump map from Travellermap.com
System Details
Primary	F5 IV M1 V
Worlds	14
Gas Giants	0
Planetoid Belts	1
Cultural Details
Government	Self-perpetuating oligarchy
Law Level	Low
Cultural Extension	2728
Army Size (BEs)	0
Economic Details
Technology Level	11
Economic Extension	846-1 Resources 8 Moderate Labor 4 Moderate (70 thousand) Infrastructure 6 Limited Efficiency -1 Average
Importance Extension	2
Resource Units	173
GWP (BCr)	2
World Trade Number	4
Trade Volume (MCr/year)	1,605
Starport Details
Classification	Class-A
Port Size	5
Building Capacity (Tons)	0
Port employees	1,135
Port passengers (annual)	0

Lanth has a population between 10,000 and 10 million sophonts, lacking the industrial base to be completely self-supporting. This system serves as the capital for the subsector. It is a member of Third Imperium in the Lanth Subsector of Spinward Marches Sector and in the Domain of Deneb. Lanth, as a member world of the Third Imperium, holds the estate of an Imperial knight, a member of the Imperial Landed Nobility who acts as an Imperial representative to the world. The system supports both an Imperial Naval Base and a Scout Base with the additional starship traffic.

Lanth/Lanth (Spinward Marches 1719)
Classic Era (1116)	A879533-B Starport A Excellent: Starship Construction, Overhaul, Refined fuel Size 8 Large (12,800 km, 0.80g - 1.08g) Atmosphere 7 Standard (tainted) Hydrographics 9 Wet World 90% Population 5 Moderate (700 thousand) Government 3 Self-Perpetuating Oligarchy Law 3 Low Law (no automatic weapons) Tech Level B Average Stellar (large starships)
See also	UWP
System Details
Primary	F5 IV M1 V
Planetoid Belts	1
Gas Giants	0

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Jump map from Travellermap.com

Lanth is a nonindustrial world, that requires extensive imports of outside technology to maintain a modern, star-faring society.

• In a technological universe, societies without industrial capability generally suffer as nearly all manufactured and high tech goods must be brought in at significant cost.
• As a nonindustrial world, it requires extensive imports of outside technology to maintain a modern, star-faring society. The need to import most manufactured and high technology goods drives the price of these goods up in the open market.
• It is a member of the Third Imperium in the Lanth Subsector of Spinward Marches Sector in the Domain of Deneb.
• The world serves as the subsector capital with the significant extra trade and prestige associated with that role.
• This world has an Imperial Naval Base, capable of handling warships.
• It also has an Imperial Scout base, capable of handling IISS starships and personnel.

Description (Astrography & Planetology)

Stellar Data

Lanth is a binary star system.

• The primary is an unstable white subgiant.
• The secondary is a red main sequence.

Lanth has two stars in the star system.

Primary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	F5 IV	Subgiant		2	6100 - 6800	12
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.02419	0.28733	2.75 - 4.49	2.419	24.19
	Orbit #	*	0	5	5	8
	Remarks
Secondary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M9 V	Main Sequence (Dwarf)		0.079	2350 - 2380	0.00014
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0009	0.001	0.01 - 0.03	0.09	0.9
	Orbit #	*	*	*	*	3
	Remarks

System Data

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

• The mainworld.
• x12 secondary rocky worlds.
• x1 planetoid belt.

Mainworld Data

Lanth is a non-industrial world separated from the majority of its subsector by the Abyss Rift, and is only accessible through Lunion Subsector or by jump-4. While this is not very important to naval or some scout vessels, its location has a significant impact on trade.

Mainworld Size (S)

Lanth is a Meso World between 12,000km and 13,500km in diameter. The world has a standard gravity between 0.8G and 1.1G. The horizon will appear about 5.1km away. Vessels with 1G of thrust should check with local starport authorities before attempting to land using emergency power.

Mainworld Atmosphere (A)

Lanth 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.

Mainworld Hydrosphere (H)

Lanth has 85-95% of its surface covered by liquid water with a few small continents, and a number of islands and archipelagos. Dry land is limited. Wilderness refueling is possible.

Mainworld Geography and Topography

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

(Blank map, predominantly watery world.)

History & Background (Dossier)

Lanth is the capital of the Lanth Subsector. It is a major military site as well as an important administrative center, occupying a strategic position close to both the Sword Worlds Confederation and the Zhodani Consulate.

The Naval Base hosts major elements of the 18th Fleet.

During the Fifth Frontier War Lanth was subject to a surprise attack by the Sword Worlds, beginning on 190-1107. Fierce planetary fighting was followed by a brief occupation by Sword World forces. In the course of the war the Imperial 100th Fleet and the Sword Worlds Gram Fleet fought a series of battles for control of the system, which culminated in Imperial victory on 094-1109. Planetary fighting continued until the last Sword Worlds elements were defeated on 241-1109.

World Starport (St)

Lanth has a Class A Starport, an excellent quality installation which includes all the expected amenities including refined fuel for starships, brokerage services for passengers and cargo, and a variety of ship provisions. There is a shipyard capable of doing annual maintenance, overhauls and other kinds of repair, and construction of both starships and non-starships. Most ports of this classification have both a Highport and a Downport.

• The world is host to a Naval Base.
• The world is host to a Scout Base.

World Population (P)

Lanth has a population of 700,000 sophonts (hundreds of thousands).

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

Linguistic Topography

The most commonly heard languages are:

• Riftian Galanglic, one of the principal dialects of one of the two official languages of the Imperium.
• Vilani, one of the two official languages of the Imperium.

World Technology Level (T)

Lanth possesses a Technology Level of TL–11 or TL-B in Hexadecimal Notation.

• Common Communication technologies for this TL include: Holovision, Personal Global Communications, and advanced Translators.
• Common Power Generation technologies for this TL include: Increasingly advanced fusion plants and advanced fuel cells.
• Common Transportation technologies for this TL include:
  • Land, Water & Air: Personal G-Tubes and advanced gravcraft.
  • Space: Advanced interplanetary spacecraft (System Craft).
  • FTL: Jump Drive-2.

World Government (G)

Lanth is governed by Self-Perpetuating Oligarchy. A single family or small group provides the leadership and important positions in the government. These positions are inherited by member of the group or their family members. The organization may be a monarchy, with titles passed to family members, or a plutocracy where inheritance of the family fortune includes government position. Alternatively, the organization may be a more typical government apparatus, only with positions of power inherited.

Imperial Landed Nobility

Lanth, as a member world of the Third Imperium, holds the estate of an Imperial Landed Knight who acts as an Imperial representative to the world, and the fiefdom of a member of the Imperial Landed Nobility, who oversees affairs regarding the world at an Interstellar and Imperial level.

• It holds the estate of an Imperial knight, the Imperial representative to the world.
• It holds the fiefdom of an Imperial subsector duke, who also conducts affairs regarding the entire subsector at the Interstellar and Imperial level.^†

See Nobles of Lanth.

The Dukes of Lanth retain substantial fiefs on several of the islands, hold three planets and one moon as private reserves, and are the planet’s titular heads-of-state. However, they have very little real political power, especially since the oligarchs assemble only once or twice a year except in emergencies, and generally just rule their own territories.

• Lanth is the center of administration for the Subsector.
  

--

^† The Ducal See is currently vacant.

World Law (L)

Lanth has a low law level. 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. Machine guns, other automatic weapons, portable energy weapons, and other military weapons, body pistols, explosives, and poison gas are typically regulated or prohibited.

Trade Data

• Importance: 2 (ordinary)

World Economy

• Resources: 8 (moderate)
• Labor: 4 (tens of thousands)
• Infrastructure: 6 (limited)
• Efficiency: -1 (average)

World Culture

• Heterogenity: 2 (monolithic)
• Acceptance: 7 (aloof)
• Strangeness: 2 (typical)
• Symbols: 8 (somewhat abstract)

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.
• 800-820: the Psionics Suppressions.
• 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

1719 Lanth (Imperial)

Starport: Class V - Naval and Scout base.

Diameter: 7,874 miles (12,600 km).
Atmosphere: Standard oxygen-nitrogen, with dust taint.
Hydrographics: 85%.
Climate: Normal.
Population: 770,000.
Government: Oligarchy.
Control Level: 1.
Tech Level: 9.
World Trade Number: 4.

References

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), 22-23.
• 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), 42. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 85.
• 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), 67-72. (UWP only)