Yrsai (world)

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 (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.

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 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.

• GURPS Traveller: Interstellar Wars
• Mongoose Traveller: Solomani Rim