Igurial (world)

Igurial/La Grone (Iphigenaia 1309)
Classic Era (1116)	X335000-0 Starport X No Starport Size 3 Small (4,800 km, 0.24g - 0.34g) Atmosphere 3 Vacuum (very thin) Hydrographics 5 Wet World 50% 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	M3 V M5 V
Planetoid Belts	0
Gas Giants	2

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Jump map from Travellermap.com

Igurial 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 La Grone Subsector of Iphigenaia 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)

Igurial is a binary star system.

• Both are red main sequence stars.

Binary Solar System

Igurial Binary Star System

Star Name	Hierarchy	Category		Mass (Sol)	Temp (K)	Luminosity (Sol)
Igurial M3 V	Primary	Main Sequence		0.37	3270 - 3430	0.03081
	Unit	Diameter	Min Distance	Hab Zone	Jump Shadow	M-Drive Limit
	AU	0.0017	0.0146	0.18 - 0.35	0.17	1.7
	Orbit #	*	*	0	0	4
	Remarks
	Periodic bouts of strong flare activity.
Star Name	Hierarchy	Category		Mass (Sol)	Temp (K)	Luminosity (Sol)
Igurial M5 V	Secondary	Main Sequence		0.162	2930 - 3060	0.00171
	Unit	Diameter	Min Distance	Hab Zone	Jump Shadow	M-Drive Limit
	AU	0.0009	0.0034	0.04 - 0.09	0.09	0.9
	Orbit #	*	*	*	*	3
	Remarks
	Flare Star. 15 AU distant from the primary.

System Data

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

• The mainworld.
• x6 secondary rocky worlds.
• x2 gas giants.

Mainworld Data

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

• The world orbits inside the stars Jump Shadow.

Mainworld Size (S)

Igurial 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)

Igurial has a pressure of 0.10 to 0.42 atmospheres. The very thin pressures require a respirator or Oxygen Mask. TL–5 or more advanced survival gear is required to settle this world.

Mainworld Hydrosphere (H)

Igurial has 45-55% of its surface covered by liquid water. Wilderness refueling is possible.

• large areas of the surface are arid, hostile environments.

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)

Igurial 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.
• Vessels are unlikely be operating 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: 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)

Igurial 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)

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

World Technology Level (T)

Igurial possesses a Tech Level of TL–0.

• The world has no technological base.

World Government (G)

Igurial has no government or ruling authority of any kind.

World Law (L)

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

Trade Data

• Importance: -3 (very unimportant)

World Economy

• Resources: 4 (scarce)
• 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 Far Future Enterprises or by permission of the author. The page history lists all of the contributions.

• Mark Gelinas. Dark River (Tidewater Traveller Club, 1988), .
• 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)
• Author & Contributor: Lord (Marquis) and Master Scout Emeritus Adie Alegoric Stewart of the IISS