Yalgoo (world)

Yalgoo/Coos (Vanguard Reaches 2001)
Classic Era (1116)	C424463-9 Starport C Routine: No Construction, Major Repair, Unrefined fuel Size 4 Small (6,400 km, 0.32g - 0.46g) Atmosphere 2 Vacuum (very thin - tainted) Hydrographics 4 Wet World 40% Population 4 Moderate (70 thousand) Government 6 Captive Government/Colony Law 3 Low Law (no automatic weapons) Tech Level 9 Early Stellar (fusion)
See also	UWP
System Details
Primary	F8 V M8 V
Planetoid Belts	1
Gas Giants	4

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Jump map from Travellermap.com

Yalgoo is a nonindustrial world, that requires extensive imports of outside technology to maintain a modern, star-faring society.

• In a technological universe, societies without industrial capability generally suffer as nearly all manufactured and high tech goods must be brought in at significant cost.
• As a nonindustrial world, it requires extensive imports of outside technology to maintain a modern, star-faring society. The need to import most manufactured and high technology goods drives the price of these goods up in the open market.
• This world is a member of the Trelyn Domain (the Duchy of Trelyn) located in the Coos Subsector of Vanguard Reaches Sector.

• This is a frozen world, with a climate of extremely low temperatures.
• This world is a colony of Karelian.

Description (Astrography & Planetology)

Stellar Data

Yalgoo is a binary star system.

• The primary is a white main sequence.
• The secondary is a red main sequence.

Yalgoo has two stars in the star system.

Yalgoo
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	F8 V	Main Sequence (Dwarf)		1.18	6050 - 6180	1.78479
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0114	0.1108	1.24 - 2.17	1.14	11.4
	Orbit #	*	0	4	3	7
	Remarks		None
Yalgoo
	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.
• x1 planetoid belt.
• x4 gas giants.

Mainworld Data

The mainworld orbits within the outer system.

• It receives very low levels of stellar energy.

Mainworld Size (S)

Yalgoo is a Meso World between 5,600km and 7,200km in diameter. The world has low gravity between 0.32G and 0.46G. The horizon will appear about 3.6km away.

Mainworld Atmosphere (A)

Yalgoo 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.

• It experiences very low temperatures.

Mainworld Hydrosphere (H)

Yalgoo has 35-45% of its surface covered by liquid water. There will be a number of small seas or one larger body of water. Wilderness refueling is possible.

• The seas are crusted with pack ice.

Mainworld Geography and Topography

No centrally held map of the world exists within AAB Library Data records.

(Blank map, predominantly dry world.)

History & Background (Dossier)

To comply with the terms of its Imperial charter, the Allarton Corporation, the Imperial corporation underpinning the Trelyn Domain, is limited to operations exclusively within the Trelyn Subsector of Vanguard Reaches Sector. Allarton officials and representatives may occasionally conduct business on other worlds of the Domain.

• Corporate operations in other areas of the Vanguard Reaches are conducted under the wholly owned Pan-Melesien Company.
• Corporate operations in the Far Frontiers Sector are conducted under the wholly owned Artesian Company, based at Yster.

Both subsidiary companies may be active on worlds far beyond their official operating areas.

World Starport (St)

Yalgoo has a Class C Starport, an average quality installation which features amenities including unrefined fuel for starships, some brokerage services for passengers and cargo, and a variety of ship provisions. There is a shipyard capable of doing maintenance and other kinds of repair. Ports of this classification generally have only a downport, unless this is a trade port or system with an hostile environment mainworld.

World Population (P)

Yalgoo has a population of 70,000 sophonts (tens of thousands).

• This is a Nonindustrial World, too small to support the complete chain of production of most goods from start to finish.

World Technology Level (T)

Yalgoo possesses a Technology Level of TL–9.

• Common Communication technologies for this TL include: Fiber optics and satellite communication and data networks.
• Common Power Generation technologies for this TL include: Early fusion power.
• Common Transportation technologies for this TL include:
  • Land: Ultra high-speed trains and early grav vehicles.
  • Water: High efficiency sailcraft, multihulled seacraft, improved artificial gills.
  • Air: Tiltrotorcraft, exotic VTOL's, PARWIG, and rocket-assisted suborbitals.
  • Space: SSTO spacecraft, early military spacecraft (System Craft), and interstellar STL starships
  • FTL: Prototype Jump Drive-1.

World Government (G)

Yalgoo has a Captive Government or Colony. The world is ruled by an external government, there is no self-rule. This is a colony or conquered area. The local government is an oligarchy appointed by, and answerable only to, the external government.

World Law (L)

Yalgoo has a low law level. There are few laws, covering only important areas. There may be few or no law enforcement officers, the expectation is citizens will bring law breakers to the attention of the Judicial system. Legal proceedings will be fast, with few people involved. For interactions outside of the framework of the laws, cultural norms dominate. Machine guns, other automatic weapons, portable energy weapons, and other military weapons, body pistols, explosives, and poison gas are typically regulated or prohibited.

Trade Data

• Importance: -1 (unimportant)

World Economy

• Resources: D (very abundant)
• Labor: 3 (thousands)
• Infrastructure: 2 (extremely limited)
• Efficiency: +1 (average)

World Culture

The world lies within the Zhodani Shadow, a region strongly influenced by the society and culture of the Zhodani Consulate.

• Heterogenity: 2 (monolithic)
• Acceptance: 3 (xenophobic)
• Strangeness: A (incomprehensible)
• Symbols: A (abstract)

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 article is missing content for one or more detailed sections. Additional details are required to complete the article. You can help the Traveller Wiki by expanding it.

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.

• Chuck Kallenbach. Classic Traveller Vanguard Reaches, (Paranoia Press, 1981), various pages. (original data)
• J. Andrew Keith, Marc Miller, John Harshman. Classic Traveller Aslan, (Game Designers Workshop, 1984), inside back cover. (the Zhodani; sector named and subsector depicted but no further data)
• J. Andrew Keith, Marc Miller, John Harshman. Classic Traveller Zhodani, (Game Designers Workshop, 1985), inside front cover. (the Zhodani; sector named and subsector depicted but no further data)
• Peter G. Celella, James Holden. Solomani & Aslan (Digest Group Publications, 1991), Pages 11, 50. (dot map provided)
• Chuck Kallenbach. External Link: Vanguard Reaches online updates, 1991.
• David L. Pulver. GURPS Traveller: Alien Races 1, (Steve Jackson Games, 1998), Pages 5-63. (the Zhodani)
• Don McKinney. Mongoose Traveller: Zhodani, (Mongoose Traveller, 2011), 188 pages. (the Zhodani)
• Geir Lanesskog. Mongoose 2nd The Spinward Extents (Mongoose Publishing, 2022), various pages. (sector data and background)