Terrelay (world)

Terrelay/Terrelay (Theron 0608)
Classic Era (1116)	E303000-0 Starport E Frontier - no facilities Size 3 Small (4,800 km, 0.24g - 0.34g) Atmosphere 0 Vacuum Hydrographics 3 Wet World 30% 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	F1 II K7 V M8 V
Planetoid Belts	0
Gas Giants	3

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Jump map from Travellermap.com

Terrelay is an icy, barren vacuum world, with no overt population, government, or law level, which would warrant hazardous environment precautions if anyone lived here.

• Its surface is ice-capped with little or no atmosphere and nearly all of its water frozen.
• This world could be populated by a determined group if they had an inclination to do so...
• It is a Non-Aligned world dominated by human sophonts located in the Terrelay Subsector of Theron Sector.

• It orbits the red tertiary star.
• Vacuum worlds have no climate, but experience extreme differences in temperature between direct starlight and shade.

Description (Astrography & Planetology)

Stellar Data

Terrelay is a trinary star system.

• The primary is a huge yellow-white giant.
• The secondary is an orange main sequence.
• The tertiary is a red main sequence.

Terrelay has three stars in the star system.

Terrelay
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	F1 II	Bright Giant		9.62	6700 - 7300	582
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.1526	2.001	19.18 - 31.26	15.26	152.6
	Orbit #	0	4	8	8	11
	Remarks		Unstable pulsating star. It produces high levels of EM noise.
Terrelay
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	K7 V	Main Sequence (Dwarf)		0.64	3990 - 4100	0.20972
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0059	0.038	0.47 - 0.88	0.59	5.9
	Orbit #	*	*	2	2	6
	Remarks		0.7 AU distant from the primary.
Terrelay
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M8 V	Main Sequence (Dwarf)		0.085	2420 - 2570	0.00018
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0011	0.0011	0.01 - 0.03	0.11	1.1
	Orbit #	*	*	*	0	3
	Remarks		Approximately 7900 AU (0.13 light-years) from the primary and secondary stars.

System Data

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

• The mainworld.
• x3 secondary rocky worlds.
• x3 gas giants.

Mainworld Data

Terrelay consists of two separate star systems.

• The white giant primary star and its secondary orange companion form one system.
• The red main sequence tertiary star lies 7900 AU distant.

The mainworld orbits within the red tertiary star's outer system.

• It receives very low levels of stellar energy.

• The world orbits beyond the star's Jump Shadow.

Mainworld Size (S)

Terrelay 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)

Terrelay 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)

Terrelay has 25-35% 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 regolith and thick dust of meteoric origin, leaving only around 30% of the icy outer shell exposed.
• Below the outer icy shell is a world-ocean of liquid water.

Satellites:

The world does not retain any natural satellites.

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, vacuum world.)

Native Lifeforms

No native life.

History & Background (Dossier)

Terrelay 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.
• The star causes interference, strange tones and noises, and heavy static on commo and sensors.
• 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)

Terrelay 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.

World Demographics (P)

Terrelay is unpopulated.

Urbanization

None.

World Technology Level (T)

Terrelay possesses a Tech Level of TL–0.

• The world has no technological base.

World Government (G)

Terrelay has no government or ruling authority of any kind.

World Military

None.

World Law (L)

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

World Economy

• Resources: 5 (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.

• J. Andrew Keith, Marc Miller, John Harshman. Aslan (Game Designers Workshop, 1984), IBC. (sector named but no further data)
• Peter G. Celella, James Holden. Solomani & Aslan (Digest Group Publications, 1991), 50, 51. (sector named, dot map provided)
• Author & Contributor: Jo Grant of CORE (generated data)
• Author & Contributor: Lord (Marquis) and Master Scout Emeritus Adie Alegoric Stewart of the IISS