Yres (world)

Yres/Regina (Spinward Marches 1802) Milieu 1116 BAC6773-9 Starport B Good: Spacecraft Construction, Overhaul, Refined fuel Size A Large (16,000 km, 1.14g - 1.48g) Atmosphere C Exotic (insidious) Hydrographics 6 Wet World 60% Population 7 Moderate (30 million) Government 7 Balkanization Law 3 Low Law (no automatic weapons) Tech Level 9 Early Stellar (fusion)
See also	UWP
style="width: 220px; height: 250px;" Jump map from Travellermap.com
System Details
Primary	G5 V
Worlds	13
Gas Giants	5
Planetoid Belts	3
Cultural Details
Government	Balkanization
Law Level	Low
Cultural Extension	4826
Army Size (BEs)	15
Economic Details
Technology Level	9
Economic Extension	H6A-2 Resources H Extremely abundant Labor 6 Moderate (3 million) Infrastructure A Extensive Efficiency -2 Fair
Importance Extension	1
Resource Units	816
GWP (BCr)	87
World Trade Number	4.5
Trade Volume (MCr/year)	2,345
Starport Details
Classification	Class-B
Port Size	4
Building Capacity (Tons)	30,000
Port employees	595
Port passengers (annual)	19,600

Yres is a fluid world with oceans of a liquid other than water such as ammonia, methane, or hydrocarbons, or other exotic liquids. It is a member of Third Imperium in the Regina Subsector of Spinward Marches Sector and in the Domain of Deneb. Yres, as a member world of the Third Imperium, holds the estate of an Imperial knight, a member of the Imperial Landed Nobility who acts as an Imperial representative to the world.

Description (Astrography & Planetology)

Stellar Data

Yres has a solitary primary star.

• It is a yellow main sequence named Ellenel

Yres has a solitary primary star.

Ellenel
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	G5 V	Main Sequence (Dwarf)		0.98	5600 - 5660	0.93173
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0091	0.0801	0.91 - 1.63	0.91	9.1
	Orbit #	*	*	3	3	7
	Remarks

System Data

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

• The mainworld.
• x4 secondary rocky worlds. The inner two are named Nugget and Lark's World.
• x3 planetoid belts.
• x5 gas giants. The innermost is named Ballodust.

Additional system details can be found here.

Mainworld Data

Yres is located in the Regina Subsector of the Spinward Marches. It has a normal climate and a standard oxygen-nitrogen atmosphere that is highly radioactive.

It orbits within its star's habitable zone.

• It receives moderate levels of stellar energy.

The world has a fast rotation period: one local day is equivalent to 6 standard hours.

Additional mainworld data can be found here.

Mainworld Size (S)

Yres is a Big World between 15,200km and 16,800km in diameter. The world has a standard gravity between 1.1G and 1.5G. The horizon will appear about 5.7km away. Vessels with only 1G of thrust should avoid landing on this world.

Mainworld Atmosphere (A)

Yres has an Insidious Atmosphere which requires the use of a Hostile Environment Suit or Vacc Suit, but extreme conditions cause the corrosive effects to defeat any personal protective measures in a few hours. TL–10 or more advanced survival gear is required to settle this world.

Mainworld Hydrosphere (H)

Yres has 55-65% of its surface covered by a fluid other than water. Wilderness refueling is not possible. Water for the inhabitants needs to be imported and extensively recycled. These worlds may be Hell Worlds.

• This surface fluid may be ammonia, methane, hydrocarbons, or other exotic liquids depending on the local temperature and environment.

Mainworld Geography and Topography

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

(Blank map, exotic world.)

History & Background (Dossier)

World Starport (Sp)

Yres has a Class B Starport, a good quality installation which includes all the expected amenities including refined fuel for starships, brokerage services for passengers and cargo, and a variety of ship provisions. There is a shipyard capable of doing annual maintenance, overhauls and most kinds of repair, and construction of non-starships. Most ports of this classification have both a Highport and a Downport.

The starport, nested in the small neutral zone between the two nations, displays the Imperium's indifference between the two rival governments. Since the revolution, the household of von Talbot relocated to Menorb and has been elevated in status to the seat of the 8th Count of Regina.

World Demographics

The world's 34 million inhabitants, as divided as they are, can no longer instill rebellion for fear of being crushed by each other. However, neither can they choose a productive course for the world. This social conflict, as deadly as the corrosive atmosphere of the world, has created a climate of fear and desperation, where large-scale sabotage in the vast underground cities is commonplace. It is even rumored by high-level sources that TAS is currently in deliberation with the rival governments over whether or not to classify the planet as an amber zone.

World Government (G)

Yres has a Balkanized Government. There is no central world government. The world has several governments competing for control of the world. These may be allies, cooperating, competitors, or at war with each other.

In addition to Yres Startown, other major settlements on Yres include Magisburg and Ninlish.

The cities of this balkanised world are all underground and underwater. Visitors face an additional docking fee of 250 credits, which is an obligatory donation to the Yres Reconstruction & War Widows Fund.

Historical Data

Yres, once a proud monarchy ruled directly by the Marquis von Talbot, was reduced to anarchy after the Fourth Frontier War. Although, the war was won, the Marquis was killed, and the planet broke out into rebellion against the ruling family. After two decades of police action on Yres, the Imperium has broken the revolutionary movement and established two rival governments on the world: The Wonderful Community, a religious dictatorship with strict moral codes, and the YLU (Yresian Liberty Union), a charismatic dictatorship ruled by popular conservative, Arthur Kuzumi.

In 1084 the Battle of Two Suns was fought in deep space between Yres and Menorb (Spinward Marches 1803), ending the Fourth Frontier War with heavy losses on both Imperial and Zhodani sides.

Yres was subject to a devastating Vargr attack that killed 1.2 million citizens; many of these casualties were suffered during the destruction of an underwater habitat. The atmosphere is highly radioactive; iodine tablets are available from public dispensers throughout the cities.

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.

• Marc Miller. The Spinward Marches (Game Designers Workshop, 1979), 20-21.
• Marc Miller. The Spinward Marches Campaign (Game Designers Workshop, 1985), 18-19.
• Marc Miller. Imperial Encyclopedia (Game Designers Workshop, 1987), 94-100. (UWP only)
• Marc Miller. MegaTraveller 1: The Zhodani Conspiracy (Paragon Software, 1990), .
• Marc Miller. MegaTraveller 2: Quest for the Ancients (Paragon Software, 1991), .
• Rob Caswell. "Domain of Deneb: Sector Data." MegaTraveller Journal 3 (1992): 47-58. (UWP only)
• Dave Nilsen. The Regency Sourcebook (Game Designers Workshop, 1995), 38. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 79.
• Mike West. The Spinward States (Avenger Enterprises, 2008), 103. (UWP only)
• Martin Dougherty. The Spinward Marches (Mongoose Publishing, 2008), .
• Martin Dougherty. Behind the Claw (Mongoose Publishing, 2019), 40-45. (UWP only)
• Gareth Hanrahan. Secrets of the Ancients (Mongoose Publishing, 2010), 255.Gareth Hanrahan. Secrets of the Ancients (Mongoose Publishing, 2021), 255.