Arba (world)

Arba/Lunion (Spinward Marches 1721) Milieu 1116 C200200-C Starport C Routine: No Construction, Major Repair, Unrefined fuel Size 2 Small (3,200 km, 0.10g - 0.17g) Atmosphere 0 Vacuum Hydrographics 0 Desert World 0% Population 2 Low (600) Government 0 No Government structure Law 0 No Law Tech Level C Average Stellar (robots)
See also	UWP
style="width: 220px; height: 250px;" Jump map from Travellermap.com
System Details
Primary	M2 V
Worlds	11
Gas Giants	0
Planetoid Belts	1
Cultural Details
Government	No government
Law Level	No law
Cultural Extension	1217
Army Size (BEs)	0
Economic Details
Technology Level	12
Economic Extension	511-4 Resources 5 Scarce Labor 1 Low (60) Infrastructure 1 Extremely limited Efficiency -4 Very poor
Importance Extension	0
Resource Units	3
GWP (BCr)	0
World Trade Number	2.5
Trade Volume (MCr/year)	0
Starport Details
Classification	Class-C
Port Size	4
Building Capacity (Tons)	0
Port employees	410
Port passengers (annual)	0

Arba is a vacuum world, with no atmosphere or hydrosphere. The system supports a population of fewer than 10,000 sophonts. It is a member of Third Imperium in the Lunion Subsector of Spinward Marches Sector and in the Domain of Deneb. Arba, as a member world of the Third Imperium, holds the estate of an Imperial knight, a member of the Imperial Nobility charged with overseeing the world.

Astrography & Planetology

The only star in the Arba system is a stellar class M2 V. There are no gas giants and a single planetoid belt in the system.

Monostellar System

Arba Monostellar System

Star Name	Hierarchy	Category		Mass (Sol)	Temp (K)	Luminosity (Sol)
Arba Primary M2 V	Primary	Main Sequence		0.44	3470 - 3560	0.0565
	Unit	Diameter	Min Distance	Hab Zone	Jump Shadow	M-Drive Limit
	AU	0.0021	0.0197	0.25 - 0.48	0.21	2.1
	Orbit #	*	*	1	0	4

IISS GURPS Astrographics Survey

1721 Arba (Third Imperium) - Green Zone

Starport: Class III.

Diameter: 2,039 miles (3,300 km).
Atmosphere: None.
Hydrographics: None.
Climate: Warml.
Population: 550.
Government: None.
Control Level: 0.
Tech Level: 9.
World Trade Number: 2.5.

History & Background (Dossier)

During the opening assault of the Fifth Frontier War Arba was captured by the Gram Fleet of the Sword Worlds Confederation as part of an invasion of the Lanth Subsector. By 180-1109 Arba had been retaken by Imperial forces assigned to the 100th Fleet, which occupied the system for the remainder of the war.

Except as an occasional stopover for jump-2 ships traveling to and from Lanth or Dyrnwyn, Arba is a world of little significance. The small colony was established to back an Imperial territorial claim, thus preventing the Sword Worlds from “legitimately” colonizing the system and expanding their sphere of influence. Local companies mining copper and zinc make a reasonable profit, but only due to Imperial subsidies aimed at keeping the colonists on planet by providing them with an excellent living.

Society is individualistic and permissive.

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.

• Marc Miller. The Spinward Marches (Game Designers Workshop, 1979), 24-25.
• Marc Miller. The Spinward Marches Campaign (Game Designers Workshop, 1985), 18-19.
• Marc Miller. Imperial Encyclopedia (Game Designers Workshop, 1987), 94-100. (UWP only)
• Rob Caswell. "Domain of Deneb: Sector Data." MegaTraveller Journal 3 (1992): 47-58. (UWP only)
• Dave Nilsen. The Regency Sourcebook (Game Designers Workshop, 1995), 46. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 91.
• Mike West. The Spinward States (Avenger Enterprises, 2008), 113. (UWP only)
• Martin Dougherty. The Spinward Marches (Mongoose Publishing, 2008), .
• Citation Missing - Behind the Claw (UWP only)