Tsiev (world)

Tsiev/Vanguard (Fulani 2913)
Classic Era (1116)	X554000-0 Starport X No Starport Size 5 Medium (8,000 km, 0.40g - 0.57g) Atmosphere 5 Thin Hydrographics 4 Wet World 40% Population 0 Barren (0) Government 0 No Government structure Law 0 No Law Tech Level 0 Pre-Industrial (primitive)
See also	UWP
System Details
Primary	M6 V M9 V
Planetoid Belts	0
Gas Giants	4

style="width: 220px; height: 250px;"

Jump map from Travellermap.com

Tsiev is a barren world with no overt population, government, or law level.

• This world could be populated if anyone had an inclination to do so...
• It is an unclaimed Non-Aligned world located in the Vanguard Subsector of Fulani Sector.

• This world is a "Twilight Zone World", a planet that is tidally-locked to its star. It has a hot side that permanently faces the star, a cold side that permanently faces away, and a narrow twilight zone in-between.

Description (Astrography & Planetology)

Stellar Data

Tsiev is a binary star system.

• Both are red main sequence stars.
• They are close companions, lying less than 0.01 AU apart.

Tsiev has two stars in the star system.

Tsiev
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M6 V	Main Sequence (Dwarf)		0.102	2740 - 2810	0.00034
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0013	0.0015	0.02 - 0.04	0.13	1.3
	Orbit #	*	*	*	0	3
	Remarks		Periodic bouts of strong flare activity.
Tsiev
	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		Periodic bouts of strong flare activity. Less than 0.01 AU from the primary.

System Data

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

• The mainworld.
• x7 secondary rocky worlds.
• x2 gas giants.

Mainworld Data

Tsiev is a Twilight Zone World.

• One side of the world permanently faces towards the star and one side permanently faces away.
• In the narrow region between permanent night and permanent day, the primary star eternally hangs on the horizon.

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)

Tsiev 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)

Tsiev has a pressure of 0.43 to 0.70 atmospheres. The Thin Atmosphere does not require survival gear although it may be hard on sophonts not accustomed to it.

Mainworld Hydrosphere (H)

Tsiev has 35-45% of its surface covered by liquid water. There will be a number of small seas or one larger body of water. Wilderness refueling is possible.

Mainworld Geography and Topography

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

• Locally, detailed maps may be available.
• Verified updated charts are constantly sought.
• Detailed survey data commands premium prices.

(Placeholder chart, predominantly dry world.)

Native Lifeforms

Primitive native life occupying a number of ecological niches. Its metabolic functions drive the process of atmospheric renewal.

History & Background (Dossier)

Tsiev is a frontier, a wild and lonely place that rarely sees visitors. Many of the planets and moons within it have ever have had an intelligent being visit them.

• Information about the system is limited.
• The resources of the system are largely untapped.

The system is unpopulated.

• Commercial traffic is extremely rare: the system sees very few visiting ships.
• Commo only picks up natural background noise and static.
• There are no active navigation beacons.

Note that social data, though only 40 years old, may be out of date: previously undocumented groups may now inhabit the system and maintain their own culture, forms of government, and systems of law.

• Verified updated data is constantly sought.

World Starport (St)

Tsiev does not have a starport. The Class X Starport is an indication that no starport exists in the system. There are no facilities or services available, and no site marked for landing.

World Demographics (P)

Tsiev is unpopulated.

Urbanization

None.

World Technology Level (T)

Tsiev possesses a Tech Level of TL–0.

• The world has no technological base.

World Government (G)

Tsiev has no government or ruling authority of any kind.

World Military

None.

World Law (L)

Tsiev has no law level. No laws of any kind are enforced.

World Economy

• Resources: 3 (very scarce)
• Labor: 0 (unpopulated)
• Infrastructure: 0 (non-existent)
• Efficiency: -5 (extremely poor)

Trade Data

• Importance: -3 (very unimportant)

World Culture

• Homogeneity: 0 (none)
• Acceptance: 0 (none)
• Strangeness: 0 (none)
• Symbols: 0 (none)

World Timeline

• 300-420: the First Survey charts the system.
• 995-1065: the Second Survey charts the system.
• 1065: the Second Survey is published.

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.

• Peter G. Celella, James Holden. Solomani & Aslan (Digest Group Publications, 1991), 50, 51. (sector named, dot map provided locating world)
• Author & Contributor: Jo Grant of CORE (generated data) / Geir Lanesskog (refinement of data)
• Author & Contributor: Lord (Marquis) and Master Scout Emeritus Adie Alegoric Stewart of the IISS