Twilight (world)

Twilight/Sephi Hydra (Aldebaran 0911)
Classic Era (1116)	B7839BE-B Starport B Good: Spacecraft Construction, Overhaul, Refined fuel Size 7 Medium (11,200 km, 0.70g - 0.94g) Atmosphere 8 Dense Hydrographics 3 Wet World 30% Population 9 High (6 billion) Government B Non-Charismatic Dictator Law E Extreme Law (police state) Tech Level B Average Stellar (large starships)
See also	UWP
System Details
Primary	G2 V
Planetoid Belts	1
Gas Giants	1

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Jump map from Travellermap.com

Twilight is a high-population, pre-rich world with a billion or more sophonts in population size.

• It lacks adequate resources to expand its economy to a rich status.
• Its economy and population are rapidly growing and living conditions are expected to quickly rise barring outside forces.
• It is a member of the Solomani Confederation in the Sephi Hydra Subsector of Aldebaran Sector.

• 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.

Description (Astrography & Planetology)

Stellar Data

Twilight has a solitary primary star.

• It is a yellow main sequence.

Twilight has a solitary primary star.

Primary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	G2 V	Main Sequence (Dwarf)		1	5720 - 5770	1
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0094	0.0829	0.95 - 1.68	0.94	9.4
	Orbit #	*	*	4	3	7
	Remarks

System Data

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

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

Mainworld Data

Mainworld Size (S)

Twilight 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)

Twilight has a pressure of 1.50 to 2.49 atmospheres. A Dense Atmosphere requires no survival gear although it may be hard on sophonts not accustomed to it.

• It experiences generally moderate temperatures.

Mainworld Hydrosphere (H)

Twilight has 25-35% of its surface covered by liquid water. It has a few small seas. Wilderness refueling is possible. Water for the inhabitants will be recycled.

Mainworld Geography and Topography

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

Twilight is a young world in a young system, with active tectonics and high mountain ranges.

(Blank map, predominantly dry world.)

Native Lifeforms

Abundant native life occupying every available ecological niche. Its metabolic functions drive the process of atmospheric renewal.

• It is particularly noted for its huge variety of plant life.

History & Background (Dossier)

World Starport (St)

Twilight has a Class B Starport, a good 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 most kinds of repair, and construction of non-starships. Most ports of this classification have both a Highport and a Downport.

World Population (P)

Twilight has a population of 6,000,000,000 sophonts (billions).

• High Population Worlds like this tend to have huge consumer markets.
• The population almost entirely consists of Solomani humans.

Urbanization

Urban areas are spread out around large bodies of water, and along the major rivers. There are areas of vast desert which have no habitation at all.

Linguistic Topography

The most commonly heard languages are:

• Rim Anglic, a dialect of Anglic and the principal language of the Confederation.

World Technology Level (T)

Twilight 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)

Twilight is governed by a Non-charismatic Dictatorship. This is a continuation of the charismatic dictatorship, where the original leadership has died or retired and been replaced by allies or protégés. The justifications for the original change in government remain as well as the assertion of rights to rule.

World Military

The Twilight Police Force is a de facto Army. They are deployed in a way that suggests that the populace is the enemy.

The Twilight Navy and Marines are a more conventional military force focused for external defense. The Navy boasts a large missile boat with an axial-mount weapon system, and a fleet of small fast System Defense Boats (SDBs).

World Law (L)

Twilight has an extreme law level which covers every area of interaction. Laws are complex, detailed, and difficult to understand. Every interaction with the government requires an Advocate. Law enforcement is omnipresent and strict. Legal proceeding can take months to years to resolve and may involve dozens of people. Most worlds with this law level may be an Amber Zone or Red Zone. All objects specifically manufactured as weapons are typically regulated or prohibited (with no exception for private residences; visiting starships are only protected so long as they stay within designated starports and approach corridors). Civilian movement is rigidly controlled. There is no difference between the police and the military. This world is a full-fledged police state. Oppression is legalized, though not routine.

Trade Data

• Importance: 3 (ordinary)

World Economy

• Resources: C (very abundant)
• Labor: 8 (hundreds of millions)
• Infrastructure: 7 (generally available)
• Efficiency: -2 (fair)

World Culture

• Heterogenity: 9 (discordant)
• Acceptance: C (xenophilic)
• Strangeness: 5 (distinct)
• Symbols: E (extremely abstract)

World Timeline

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

• -9235: far to coreward, the Vilani discover jump drive technology. Over the centuries pioneers and settlers gradually spread across Charted Space.
• -4045 to -2204: the Ziru Sirka controls vast territories.
• -2431: Terrans discover jump drive technology.
• -2404 to -2215: the Interstellar Wars.
• -2204 to -1776: the Rule of Man administers the former Ziru Sirka.
• -1776 to 0: the Long Night.
• The Year 0: to coreward, the Third Imperium is founded.
• 300-420: the Imperial First Survey charts the system.
• 604-622: the Imperial Civil War.
• 624: the Imperial Express Boat Network is established.
• 704: the Solomani Autonomous Region is formed.
• 800-820: the Psionics Suppressions.
• 871: the Solomani Confederation is founded.
• 940: the Solomani Autonomous Region is dissolved.
• 990-1002: the Solomani Rim War.
• 995-1065: the Imperial Second Survey includes data for the system.
• 1065: the Second Survey is published. Information about the system becomes widely available.

References & Contributors (Sources)

This article is missing content for one or more detailed sections. Additional details are required to complete the article. You can help the Traveller Wiki by expanding it.

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.

• John Harshman, Marc Miller, Loren Wiseman. Classic Traveller Supplement 8 Library Data (A-M), (Game Designers Workshop, 1981), various pages. (Library data entries)
• John Harshman, Marc Miller, Loren Wiseman. Classic Traveller Supplement 11 Library Data (N-Z), (Game Designers Workshop, 1982), various pages. (Library data entries)
• John Harshman, Marc Miller. Solomani (Game Designers Workshop, 1986), IFC, pages 3, 28. (sector named, background for the sector)
• Peter G. Celella, James Holden. Solomani & Aslan (Digest Group Publications, 1991), pages 8-11, various others. (dot map locating the worlds of the sector, background for the sector)
• Steven Eric Schwartz. MegaTraveller Periodical Imperiallines 2, 1991, page 5. (Bootean Federation, background for the sector)
• Michael Taylor. Fighting Ships of the Solomani (QuikLink Interactive, 2009), page 5. (background for the sector)
• David L. Pulver. Solomani (Mongoose Publishing, 2012), pages 50, 118, 119, various others. (background for the sector)
• Martin J. Dougherty. The Order of Prometheus (Mongoose Publishing, 2023), various pages. (scenarios and background for the sector)
• Zho Berka's Maps (Classic Era UWP Data for the world)
• CORE Data Site (UWP Data for the world)
• Author & Contributor: Garnfellow (development of the sector)
• Author & Contributor: Leroy W.L. Guatney of the Federation Development Agency (FDA) (development of the sector)