Huderu (world)

Huderu/Rhylanor (Spinward Marches 3114) Milieu 1116 X575000-0 Starport X No Starport Size 5 Medium (8,000 km, 0.40g - 0.57g) Atmosphere 7 Standard (tainted) Hydrographics 5 Wet World 50% Population 0 Barren (0) Government 0 No Government structure Law 0 No Law Tech Level 0 Pre-Industrial (primitive)
See also	UWP
style="width: 220px; height: 250px;" Jump map from Travellermap.com
System Details
Primary	M0 V
Worlds	10
Gas Giants	0
Planetoid Belts	2
Cultural Details
Government	No government
Law Level	No law
Cultural Extension	0000
Army Size (BEs)	0
Economic Details
Technology Level	0
Economic Extension	200-5 Resources 2 Very scarce Labor 0 Barren (0) Infrastructure 0 Non-existent Efficiency -5 Extremely poor
Importance Extension	-3
Resource Units	0
GWP (BCr)	0
World Trade Number	0
Trade Volume (MCr/year)	0
Starport Details
Classification	Class-X
Port Size	0
Building Capacity (Tons)	0
Port employees	0
Port passengers (annual)	0

Huderu is a barren world with no registered population or government. This world designated as a Red Zone with an environment, laws, customs, life forms, or other conditions that make it extremely dangerous to visitors. Everyone is forbidden to travel here. It is a member of Third Imperium in the Rhylanor Subsector of Spinward Marches Sector and in the Domain of Deneb.

Astrography & Planetology

Huderu is an isolated system, unconnected to any other system. Huderu's system contains a single red dwarf star, two planetoid belts, five minor rock and ice worlds and the molten core mainworld.

The mainworld, Huderu Beta, has a low pressure oxygen-nitrogren atmosphere with a high carbon dioxide taint. Despite it being located outside of the system's "Goldilocks" zone it is on the very cool end of temperate due to a significant greenhouse effect. The world is just warm enough to keep the oceans from freezing. The world has two large seas, separated from each other in the northern and southern hemispheres. These are both heavily carbonated from undersea volcanic activity. The water contains a significant percentage of carbonic acid and has a pH too low to support life.

Huderu has no starport or population on the surface. Ocean refueling is possible but prohibited by the IISS interdiction squadron to avoid interfering with biosphere development.

Monostellar System

Huderu Monostellar System

Star Name	Hierarchy	Category		Mass (Sol)	Temp (K)	Luminosity (Sol)
Huderu M0 V	Primary	Main Sequence		0.57	3770 - 3850	0.13982
	Unit	Diameter	Min Distance	Hab Zone	Jump Shadow	M-Drive Limit
	AU	0.0027	0.031	0.39 - 0.74	0.27	2.7
	Orbit #	*	*	2	0	5

System Data

Second Survey Data finalized 126-1060

• Huderu Primary: M0V red dwarf
• Huderu Alpha: Y000000-0 Protoplanetary inner belt mean orbital .20 AU
• Huderu Beta: X575000-0 Molten Core mean orbital .50 AU MAINWORLD Rotation: 19 hours, Revolution: 182.4 standard days, Density: 6.8, Surface gravity 0.50 G, Atmospheric Composition: 20% Oxygen/69% Nitrogen/10% CO2/1% other, Pressure: 91 kPa mean at sea level, Liquid water ocean with carbonic acid taint, Atmospheric temperature mean during observation: 282K
• Huderu Gamma: Y1000000-0 rocky body mean orbital .80 AU
• Huderu Delta: YS000000-0 icy body mean orbital 1.4 AU
• Huderu Epsilon: Y4000000-0 icy body mean orbital 2.6 AU
• Huderu Zeta: Y200000-0 icy body mean orbital 5.0 AU
• Huderu Eta: YS000000-0 icy body, captured retrograde orbital 9.8 AU
• Huderu Theta: Y000000-0 Planetoid Ice belt mean orbital 19.4 AU

Mainworld Geography & Topography

Huderu Beta has few major geographic features other than the two large oceans in the north and the south. The oceans are separated by a large continental mountain range, but may have once been a single sea.

History & Background (Dossier)

There is no population on Huderu and no history of colonization is apparent. The world was cataloged during the First and Second Surveys. In addition the Huderu system has had several surveys done, both by private firms and the IISS, looking for useful minerals. No minerals worth exploitation were discovered on Huderu Beta or in the planetoid belts. The world is not suitable for agriculture due to its cold temperature, acidic hydrosphere and soil. Further public surveys ceased after interdiction.

Huderu was interdicted by the Scout Service in 1084 after the last mineral survey. The interdiction is enforced by a small squadron and regular Scout patrols. The Second Survey report for Huderu indicated native terrestrial lichen or algae that was thought to be a transplant. The survey also reported a single example of a large hostile life form living in the northern ocean, but further exploration did not locate this or any other complex creature. Further studies indicated that the world may be developing a nascent biosphere. Worlds in this situation in Charted Space are rare and the Scouts are maintaining the interdiction to observe this process.

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), 30-31.
• 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), 43. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 110.
• Mike West. The Spinward States (Avenger Enterprises, 2008), 104. (UWP only)
• Martin Dougherty. The Spinward Marches (Mongoose Publishing, 2008), .
• Martin Dougherty. Behind the Claw (Mongoose Publishing, 2019), 74-79. (UWP only)
• Author & Contributor: Lord Matthew Kerwin, Baron Thon