Irisan (world)

Irisan/Tiachtiebria (Fulani 2216)
Classic Era (1116)	X222000-0 Starport X No Starport Size 2 Small (3,200 km, 0.10g - 0.17g) Atmosphere 2 Vacuum (very thin - tainted) Hydrographics 2 Dry World 20% 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	M8 III
Planetoid Belts	1
Gas Giants	4

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Jump map from Travellermap.com

Irisan is a poor, 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 Tiachtiebria Subsector of Fulani Sector.

• It is a main world which is a satellite of either a gas giant or another world.
• This is a cold world with an overall climate that is at the lower temperature range of human-congruous sophont endurance.

Description (Astrography & Planetology)

Irisan has a solitary primary star.

• It is a turbulent red giant named Jaskash.

Irisan has a solitary primary star.

Jaskash
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M8 III	Giant		8.75	1900 - 2500	2587.5
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	3.04271	4.21915	40.44 - 65.91	304.271	3042.71
	Orbit #	5	6	9	12	15
	Remarks		Periodic bouts of strong flare activity. It produces high levels of EM noise.

System Data

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

• The mainworld.
• x6 secondary rocky worlds.
• x1 planetoid belt.
• x1 gas giant.

Mainworld Data

Irisan is a satellite of a gas giant.

The mainworld and its gas giant primary orbit within the star's Habitable Zone.

• They lie within the zones colder outer H- region.
• They receive lower levels of stellar energy.

• They orbit inside the stars huge Jump Shadow.

Mainworld Size (S)

Irisan is a Small World between 2,400km and 4,000km in diameter. The world has low gravity between 0.1G and 0.17G. The horizon will appear about 2.5km away.

Mainworld Atmosphere (A)

Irisan 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 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.

• It experiences very low temperatures.

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)

Irisan 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.

• Much of the surface is an arid, hostile environment.

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

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

History & Background (Dossier)

Irisan 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)

Irisan 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 Population (P)

Irisan is a Barren World with no sophont population. It may still possess lifeforms.

World Technology Level (T)

Irisan possesses a Tech Level of TL–0.

• The world has no technological base.

World Government (G)

Irisan has no government or ruling authority of any kind.

World Law (L)

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

Trade Data

• Importance: -3 (very unimportant)

World Economy

• Resources: 8 (moderate)
• Labor: 0 (unpopulated)
• Infrastructure: 0 (non-existent)
• Efficiency: -5 (extremely poor)

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