Elsidan (world)

Elsidan/Chang-Tu (Theron 0220)
Classic Era (1116)	E592356-6 Starport E Frontier - no facilities Size 5 Medium (8,000 km, 0.40g - 0.57g) Atmosphere 9 Dense (tainted) Hydrographics 2 Dry World 20% Population 3 Low (0 thousand) Government 5 Feudal Technocracy Law 6 Moderate Law (no firearms except shotguns) Tech Level 6 Pre-Stellar (nuclear)
See also	UWP
System Details
Primary	K4 V M8 V
Planetoid Belts	0
Gas Giants	4

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Jump map from Travellermap.com

Elsidan is a low-population hellworld with a population less than 10,000 sophonts struggling to survive in an inhospitable environment .

• Hellworlds often offer daily, and sometimes even hourly, life-threatening situations to their inhabitants.
• It is an unclaimed Non-Aligned world located in the Chang-Tu Subsector of Theron Sector.

• This is a hot world, with a climate of high temperatures.

Description (Astrography & Planetology)

Stellar Data

Elsidan is a binary star system.

• The primary is an orange main sequence.
• The secondary is a red main sequence.

Elsidan has two stars in the star system.

Elsidan
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	K4 V	Main Sequence (Dwarf)		0.73	4440 - 4600	0.33238
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0066	0.0478	0.58 - 1.07	0.66	6.6
	Orbit #	*	*	2	2	6
	Remarks		None
Elsidan
	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		None

System Data

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

• The mainworld.
• x7 secondary rocky worlds.
• x4 gas giants.

Mainworld Data

The mainworld orbits within the star's Habitable Zone.

• It lies within the zone's warmer inner H+ region
• It receives higher levels of stellar energy.

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

Mainworld Size (S)

Elsidan 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)

Elsidan has a pressure of 1.50 to 2.49 atmospheres. While a Dense Atmosphere requires no 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)

Elsidan has 15-25% of its surface covered by liquid water or ice. There may be a few small seas. Wilderness refueling is possible. Water for the inhabitants needs to be imported and extensively recycled. These worlds are Hell Worlds or Poor Worlds depending on their atmosphere.

• The world experiences high temperatures.
• Much of the surface is an arid, hostile environment.

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, predominantly dry world.)

Native Lifeforms

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

• Native life thrives in arid conditions.

History & Background (Dossier)

Elsidan is a quiet backwater with a stagnant economy and limited development.

• Settlement within the system comes from spinward, from the heavily populated worlds of Theta Borealis Sector.
• The resources of the system are gradually being exploited.

There is limited activity within the system.

• Commercial traffic is very infrequent: ships rarely visit.
• Commo regularly picks up signals and private chatter. Communications are in Riftian Anglic.
• A single commercial navigation beacon may be active.
• Vessels rarely operate among the other worlds and moons that make up the system.

Note that social data, though only 40 years old, may be out of date.

• Verified updated data is constantly sought.

World Starport (St)

Elsidan 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 Population (P)

Elsidan has a population of 5,000 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.

Urbanization

A central urban area surrounded by smaller satellite communities.

• Outlying areas have a few isolated structures or compounds.
• Almost all of the surface of the world is wilderness.

World Technology Level (T)

Elsidan possesses a Technology Level of TL–6.

• Common Communication technologies for this TL include: Telephone, radio, and television.
• Common Power Generation technologies for this TL include: Early fission power generation, advanced water and wind generation of electricity.
• Common Transportation technologies for this TL include:
  • Land: Improved automobiles, early ATV's, and dedicated AFV's.
  • Water: Amphibious vehicles, improved submersibles, and early SCUBA gear.
  • Air: Early jet aircraft and rotorcraft VTOL's.
  • Space: Early unmanned rocket delivery systems and early manned orbital rockets.

World Government (G)

Elsidan is governed by a Feudal Technocracy. Society divides itself based on the technical requirements of the society. Each of these functions are granted as a fief to an individual or group. Leadership of these fiefs determines the head of the government.

World Military

Privately retained security personnel.

World Law (L)

Elsidan has a moderate level with laws covering many areas of government and interaction. These laws are simple enough that most people can act as their own advocate, though for serious issues a professional is recommended. Law enforcement officials will be present, but not in great numbers. All firearms except shotguns, and anything more destructive, are typically regulated or prohibited.

Trade Data

• Importance: -3 (very unimportant)

World Economy

• Resources: 8 (moderate)
• Labor: 2 (hundreds)
• Infrastructure: 0 (non-existent)
• Efficiency: +1 (average)

World Culture

• Homogeneity: 8 (discordant)
• Acceptance: 1 (extremely xenophobic)
• Strangeness: 7 (confusing)
• Symbols: 7 (somewhat concrete)

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