Yrsai (world)

This is a world-system under construction and is currently being input-programmed into the Traveller RPG Wiki.

Yrsai/Alderamin (Solomani Rim 0511)
Classic Era (1116)	A663A9B-F Starport A Excellent: Starship Construction, Overhaul, Refined fuel Size 6 Medium (9,600 km, 0.60g - 0.81g) Atmosphere 6 Standard Hydrographics 3 Wet World 30% Population A High (40 billion) Government 9 Impersonal Bureaucracy Law B Extreme Law (control of movement) Tech Level F High Stellar (anagathics)
See also	UWP
System Details
Primary	G0 V M5 V
Planetoid Belts	0
Gas Giants	2

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Jump map from Travellermap.com

Yrsai is a high-population world with a billion or more sophonts in population size.

• This is a "high technology" world with technology achievements at, near, or over technology standards for Charted Space.
• It is a member of the Third Imperium in the Alderamin Subsector of Solomani Rim Sector in the Domain of Sol.

Description (Astrography & Planetology)

It is a world with two small moons.

Binary Solar System

Yrsai Binary Star System

Star Name	Hierarchy	Category		Mass (Sol)	Temp (K)	Luminosity (Sol)
Yrsai G0 V	Primary	Main Sequence		1.06	5860 - 5930	1.22623
	Unit	Diameter	Min Distance	Hab Zone	Jump Shadow	M-Drive Limit
	AU	0.0051	0.0918	1.04 - 1.83	0.51	5.1
	Orbit #	*	*	4	1	6
Star Name	Hierarchy	Category		Mass (Sol)	Temp (K)	Luminosity (Sol)
Yrsai 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

IISS GURPS Astrographics Survey

0511 Yrsai (Imperial)

Starport: Class V.

Diameter: 6,100 miles (9,800 km). Gravity: 0.72g.
Atmosphere: Standard oxygen-nitrogen.
Hydrographics: 32%.
Climate: Normal.
Population: 34 billion.
Government: Bureaucracy.
Control Level: 6.
Tech Level: 12.
World Trade Number: 6.5.

System Data

No information yet available.

Mainworld Data

No information yet available.

Mainworld Atmosphere

TBD has a pressure of less than 0.001 atmospheres which requires the use of a Vacc Suit. TL–8 or more advanced survival gear is required to settle this world.

Mainworld Geography & Topography

No information yet available.

Mainworld Map

No information yet available.

Native Lifeforms

No information yet available.

History & Background (Dossier)

Yrsai, originally known as Ushmi (Anglic: Ushmi), is a high-population Imperial world with two small moons, located in Alderamin Subsector of the Solomani Rim.

• At 40 billion, Yrsai is the highest population world in the subsector.

Local Nobility

Yrsai, as a member world of the Third Imperium, holds the estates of two members of the Imperial Nobility, who are charged with overseeing the world.

• It holds the estate of an Imperial knight.
• It holds the fiefdom of an Imperial count.

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 Far Future Enterprises or by permission of the author. The page history lists all of the contributions.

• Board Game: Marc Miller. Imperium (Game Designers Workshop, 1977), TBD.
• Periodical: Classic Traveller Dragon #87 in Article: "Luna: Travellers Guide" - Marc Miller
• Loren Wiseman. Marooned/Marooned Alone (Game Designers Workshop, 1981), TBD.
• Frank Chadwick, Marc Miller. Argon Gambit/Death Station (Game Designers Workshop, 1981), TBD.
• John Harshman. The Solomani Rim (Game Designers Workshop, 1982), TBD. (Supplement 10)
• J. Andrew Keith. Murder on Arcturus Station (Game Designers Workshop, 1983), TBD.
• J. Andrew Keith, William H. Keith Jr.. Nomads of the World Ocean (Game Designers Workshop, 1983), TBD.
• Marc Miller. Signal GK (Game Designers Workshop, 1984), TBD.
• John Harshman, Marc Miller. Solomani (Game Designers Workshop, 1986), 1-48. (Alien Module 6: Solomani) in Article "World Index"
• Peter G. Celella, James Holden. Solomani & Aslan (Digest Group Publications, 1991), TBD. (dotmap provided)
• Marc Miller. Imperial Encyclopedia (Game Designers Workshop, 1987), TBD.
• Gary L. Thomas. "The Trouble With Kids." The Travellers' Digest 13 (1989): 21-22.
• Kevin Knight. Traveller Chronicle 10 (Sword of the Knight Publications, 1996), TBD.
• Kevin Knight. Traveller Chronicle 11 (Sword of the Knight Publications, 1996), TBD.
• Kevin Knight. Traveller Chronicle 12 (Sword of the Knight Publications, 1997), TBD.
• Jon F. Zeigler. Rim of Fire (Steve Jackson Games, 2000), 1-144. (GURPS Traveller: Rim of Fire: The Solomani Rim Sourcebook)
• Paul Drye, Loren Wiseman, Jon F. Zeigler. Interstellar Wars (Steve Jackson Games, 2006), TBD.
• David L. Pulver. Solomani Rim (Mongoose Publishing, 2012), TBD.
• EXTERNAL LINK: The Zhodani Base
• Traveller Wiki Editorial Team
• Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science