Somem (world)

Somem/Rhylanor (Spinward Marches 3020)
Classic Era (1116)	C301340-B Starport C Routine: No Construction, Major Repair, Unrefined fuel Size 3 Small (4,800 km, 0.24g - 0.34g) Atmosphere 0 Vacuum Hydrographics 1 Dry World 10% Population 3 Low (B thousand) Government 4 Representative Democracy Law 0 No Law Tech Level B Average Stellar (large starships)
See also	UWP
System Details
Primary	M2 V M7 V
Planetoid Belts	0
Gas Giants	1

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Jump map from Travellermap.com

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

• Its surface is ice-capped with little or no atmosphere and nearly all of its water frozen.
• It is a member of the Third Imperium in the Rhylanor Subsector of Spinward Marches Sector in the Domain of Deneb.
• Somem is a member of the Spinward Main.

Description (Astrography & Planetology)

Stellar Data

Somem is a binary star system.

• Both are red main sequence stars.

Somem has two stars in the star system.

Primary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M2 V	Main Sequence (Dwarf)		0.44	3470 - 3560	0.0565
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0041	0.0197	0.25 - 0.48	0.41	4.1
	Orbit #	*	*	1	1	6
	Remarks
Secondary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M7 V	Main Sequence (Dwarf)		0.09	2630 - 2680	0.00022
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0011	0.0012	0.02 - 0.03	0.11	1.1
	Orbit #	*	*	*	0	3
	Remarks

System Data

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

• The mainworld.
• x12 secondary rocky worlds.
• x1 gas giant.

Mainworld Data

The mainworld is an ice-capped, vacuum planet renowned as a market world where almost anything can be traded.

It orbits within the outer system.

Mainworld Size (S)

Somem is a Small World between 4,000km and 5,600km in diameter. The world has low gravity between 0.24G and 0.34G. The horizon will appear about 3km away.

Mainworld Atmosphere (A)

Somem has a pressure of less than 0.001 atmospheres which requires the use of a Vacc Suit. TL–8 or more advanced survival gear is required to settle this world.

Mainworld Hydrosphere (H)

Somem has 05-15% of its surface covered by ice, either in vast sheets or contained deep within craters or fractures on the surface. Wilderness refueling is possible. Water for the inhabitants can be got by mining and melting ice.

• The surface of the world is composed of a crust of ice many kilometers thick.
• Much of the surface is cratered and covered in thick layers of regolith and dust of meteoric origin, leaving only a part of the icy outer shell exposed.
• Below the outer icy shell there may be a world-ocean of liquid water.

Mainworld Geography and Topography

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

(Blank map, vacuum world.)

History & Background (Dossier)

Somem is famous as a market world, where almost anything can be traded.

World Starport (St)

Somem has a Class C Starport, an average quality installation which features amenities including unrefined fuel for starships, some brokerage services for passengers and cargo, and a variety of ship provisions. There is a shipyard capable of doing maintenance and other kinds of repair. Ports of this classification generally have only a downport, unless this is a trade port or system with an hostile environment mainworld.

World Population (P)

Somem has a population of 2,000 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)

Somem 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)

Somem is governed by a Representative Democracy where government leadership is by representatives elected by eligible voters. What determines an eligible voter varies. The representatives determine policy, including selecting members of the bureaucracy. There can be referenda, votes by eligible voters on specific subjects.

World Law (L)

Somem 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

Somem, 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: 0 (unimportant)

World Economy

• Resources: 6 (few)
• Labor: 2 (hundreds)
• Infrastructure: 0 (non-existent)
• Efficiency: -4 (very poor)

World Culture

• Heterogenity: 1 (monolithic)
• Acceptance: 3 (xenophobic)
• Strangeness: 1 (very 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

3020 Somem (Imperial)

Starport: Class III.

Diameter: 2,909 miles (4,700 km).
Atmosphere: None.
Hydrographics: 7%.
Climate: Normal.
Population: 7,000.
Government: Representative democracy.
Control Level: 0.
Tech Level: 10.
World Trade Number: 3.0.

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)