Xian (Tn 0313) (world)

Xian/Chang-Tu (Theron 0313)
Classic Era (1116)	E627000-0 Starport E Frontier - no facilities Size 6 Medium (9,600 km, 0.60g - 0.81g) Atmosphere 2 Vacuum (very thin - tainted) Hydrographics 7 Wet World 70% 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	M0 V
Planetoid Belts	1
Gas Giants	4

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Jump map from Travellermap.com

Xian 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 a Non-Aligned world dominated by human sophonts located in the Chang-Tu Subsector of Theron 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

Xian has a solitary primary star.

• It is a red main sequence.

Xian has a solitary primary star.

Xian
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M0 V	Main Sequence (Dwarf)		0.57	3770 - 3850	0.13982
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0055	0.031	0.39 - 0.74	0.55	5.5
	Orbit #	*	*	2	1	6
	Remarks		Periodic bouts of strong flare activity.

System Data

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

• The mainworld.
• x3 secondary rocky worlds.
• x1 planetoid belt.
• x4 gas giants.

Mainworld Data

Xian is a Twilight Zone World.

• 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 warmer inner H+ region
• It receives higher levels of stellar energy.

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

Mainworld Size (S)

Xian is a Meso World between 8,800km and 10,400km in diameter. The world has a standard gravity between 0.6G and 0.8G. The horizon will appear about 4.4km away.

• The world is seismically and geologically active.

Mainworld Atmosphere (A)

Xian has a pressure of 0.10 to 0.42 atmospheres. The very thin pressures require a respirator or Oxygen Mask. 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 Respirator Combination Mask. Some taints may require more protective equipment. TL–5 or more advanced survival gear is required to settle this world.

• The world has an abiotic oxygen atmosphere.
• Oxygen is produced by photocatalytic conversion of surface materials by stellar energy.
• Fresh surface material is constantly exposed through processes such as seismic activity, volcanism, or erosion.
• The oxygen rapidly depletes from the atmosphere through oxidization with surface materials: a rough equilibrium between production and depletion exists.
• The percentage of oxygen in the atmosphere varies according to the density of global cloud cover.

Mainworld Hydrosphere (H)

Xian has 65-75% of its surface covered by liquid water. It has significant large liquid bodies. 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 watery world.)

Native Lifeforms

No native life: the world has an abiotic oxygen atmosphere.

History & Background (Dossier)

Xian 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)

Xian 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)

Xian is unpopulated.

Urbanization

None.

World Technology Level (T)

Xian possesses a Tech Level of TL–0.

• The world has no technological base.

World Government (G)

Xian has no government or ruling authority of any kind.

World Military

None.

World Law (L)

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

World Economy

• Resources: 7 (few)
• 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