Caliburn (world)

Caliburn/Sword Worlds (Spinward Marches 1430) Milieu 1116 E000514-A Starport E Frontier - no facilities Size 0 Asteroid/Planetoid Belt Atmosphere 0 Vacuum Hydrographics 0 Desert World 0% Population 5 Moderate (900 thousand) Government 1 Company/Corporation Law 4 Moderate Law (no light assault weapons) Tech Level A Early Stellar (jump drive)
See also	UWP
style="width: 220px; height: 250px;" Jump map from Travellermap.com
System Details
Primary	M2 V
Worlds	13
Gas Giants	4
Planetoid Belts	1
Cultural Details
Government	Company or Corporation
Law Level	Moderate
Cultural Extension	3438
Army Size (BEs)	0
Economic Details
Technology Level	10
Economic Extension	C43-3 Resources C Very abundant Labor 4 Moderate (90 thousand) Infrastructure 3 Very limited Efficiency -3 Poor
Importance Extension	-1
Resource Units	101
GWP (BCr)	2
World Trade Number	3
Trade Volume (MCr/year)	0
Starport Details
Classification	Class-E
Port Size	0
Building Capacity (Tons)	0
Port employees	0
Port passengers (annual)	0

Caliburn has the population located in one or more dwarf planets or planetesimals in a co-orbital position, an asteroid belt. The system has a population between 10,000 and 10 million, lacking the industrial base to be completely self-supporting. It is a member of Third Imperium in the Sword Worlds Subsector of Spinward Marches Sector and in the Domain of Deneb. Caliburn, 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.

• Caliburn is a member of the Spinward Main.

Description (Astrography & Planetology)

Stars

Caliburn has a solitary primary star.

• It is a red main sequence.

Caliburn has a solitary primary star.

Caliburn
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M2 V	Main Sequence (Dwarf)		0.44	3470 - 3560	0.0565
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0041	0.0197	0.25 - 0.48	0.41	4.1
	Orbit #	*	*	1	1	6
	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

Caliburn is an Asteroid Belt mainworld.

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Mainworld Size (S)

Caliburn is an Asteroid Belt consisting of a few very large objects with diameters of hundreds of kilometers, thousands of bodies of a few kilometers in diameter, and millions of smaller objects.

• Asteroid Belt is the belt when it is the mainworld of a system.
• Planetoid Belt refers to any non-mainworld belt within a system.

Mainworld Atmosphere (A)

None of the bodies within the Caliburn belt retain an atmosphere.

• The belt is in vacuum conditions, requiring the use of a Vacc Suit.
• TL–8 or more advanced survival gear is required to settle this world.

Mainworld Hydrosphere (H)

The Caliburn belt contains a few icy bodies. A few belt objects have frozen volatiles on their surfaces.

• Wilderness refueling is possible within the belt, provided a suitable icy object can be found.
• Water for the inhabitants is generally imported and is extensively recycled.

Mainworld Geography and Topography

No centrally held chart of the belt exists within AAB Library Data records.

(Placeholder chart, asteroid belt.)

History & Background (Dossier)

Caliburn has generally been considered a superior source of exploitable resources to Bowman (Spinward Marches 1132), though the Caliburn belt is by no means as extensive as that of Bowman.

For most of their early history, the inhabitants of the Caliburn belt were too scattered and independent to be governed by any central authority, but in 539 they joined together to form the Caliburn Cooperative, which was set up as a company, and empowered to perform a limited number of government functions. The system joined the Imperium in 555 together with Caladbolg and Gunn.

Caliburn is the Latin version of Excalibur, the legendary sword of King Arthur, sometimes also attributed with magical powers or associated with the rightful sovereignty of Britain.

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 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), 16-17.
• 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), 44-45. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 71.
• Paul Drye, Hans Rancke-Madsen, Robert Prior. Sword Worlds (Steve Jackson Games, 2004), 78.
• Martin Dougherty. Bowman Arm (Avenger Enterprises, 2006), 10.
• Mike West. The Spinward States (Avenger Enterprises, 2008), 109. (UWP only)
• Martin Dougherty. The Spinward Marches (Mongoose Publishing, 2008), .
• Martin Dougherty. Behind the Claw (Mongoose Publishing, 2019), 89-92,96-97. (UWP only)
• Martin Dougherty. Sword Worlds (Mongoose Publishing, 2020), .
• Tony Jones - The Caliburn system - Memory Lapse Megatraveller campaign