Siven (world)

Siven/Mongrebi (Zarushagar 2539)
Classic Era (1116)	B798137-B Starport B Good: Spacecraft Construction, Overhaul, Refined fuel Size 7 Medium (11,200 km, 0.70g - 0.94g) Atmosphere 9 Dense (tainted) Hydrographics 8 Wet World 80% Population 1 Low (50) Government 3 Self-Perpetuating Oligarchy Law 7 Moderate Law (no firearms) Tech Level B Average Stellar (large starships)
See also	UWP
System Details
Primary	F2 V M6 V
Planetoid Belts	1
Gas Giants	1

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Jump map from Travellermap.com

Siven is a low-population world with a population of less than 10,000 sophonts in size.

• This world has yet to take off economically or otherwise and the population remains low for reasons largely unknown.
• It is a member of the Third Imperium in the Mongrebi Subsector of Zarushagar Sector in the Domain of Ilelish.
• It is a part of The Link region of the Rimward Link.

Description (Astrography & Planetology)

Stellar Data

Siven is a binary star system.

• The primary is a white main sequence.
• The secondary is a red main sequence.

Siven has two stars in the star system.

Primary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	F2 V	Main Sequence (Dwarf)		1.46	6750 - 6820	3.76041
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0151	0.1608	1.73 - 3	1.51	15.1
	Orbit #	*	0	5	4	8
	Remarks
Secondary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M6 V	Main Sequence (Dwarf)		0.102	2740 - 2810	0.00034
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0013	0.0015	0.02 - 0.04	0.13	1.3
	Orbit #	*	*	*	0	3
	Remarks

System Data

The worlds of the system have been surveyed. They consist of:

• The mainworld.
• x9 secondary rocky worlds.
• x1 planetoid belt.
• x1 gas giant.

Mainworld Data

Mainworld Size (S)

Siven is a Meso World between 10,400km and 12,000km in diameter. The world has a standard gravity between 0.7G and 0.9G. The horizon will appear about 4.7km away.

Mainworld Atmosphere (A)

Siven has a pressure of 1.50 to 2.49 atmospheres. While a Dense Atmosphere requires no survival gear this atmosphere also contains an unusual taint such as disease, a hazardous gas mix, pollutants, or sulfur compounds which requires the use of a Filter Mask. Some taints may require more protective equipment. TL–3 or more advanced survival gear is required to settle this world.

Mainworld Hydrosphere (H)

Siven has 75-85% of its surface covered by liquid water with a few large continents and extensive islands. Wilderness refueling is possible.

Mainworld Geography and Topography

No centrally held map of the world exists within AAB Library Data records.

(Blank map, predominantly watery world.)

History & Background (Dossier)

Siven is a member of The Link region of the Rimward Link, an important trade route running through parts of Daibei Sector, Massilia Sector, and Zarushagar Sector.

World Starport (St)

Siven has a Class B Starport, a good quality installation which includes all the expected amenities including refined fuel for starships, brokerage services for passengers and cargo, and a variety of ship provisions. There is a shipyard capable of doing annual maintenance, overhauls and most kinds of repair, and construction of non-starships. Most ports of this classification have both a Highport and a Downport.

World Population (P)

Siven has a population of 50 sophonts (tens).

• This is a Low Population World and the population would be too low to sustain itself without significant outside assistance. This may represent a transient population such as the crew of a starship, the final survivors of a dying colony, an advance team setting up to receive colonists, or a small outpost where establishing a colony is not the primary objective.

Linguistic Topography

The most commonly heard languages are:

• Anglic, one of the two official languages of the Imperium.
• Vilani, one of the two official languages of the Imperium.

World Technology Level (T)

Siven possesses a Technology Level of TL–11 or TL-B in Hexadecimal Notation.

• Common Communication technologies for this TL include: Holovision, Personal Global Communications, and advanced Translators.
• Common Power Generation technologies for this TL include: Increasingly advanced fusion plants and advanced fuel cells.
• Common Transportation technologies for this TL include:
  • Land, Water & Air: Personal G-Tubes and advanced gravcraft.
  • Space: Advanced interplanetary spacecraft (System Craft).
  • FTL: Jump Drive-2.

World Government (G)

Siven is governed by Self-Perpetuating Oligarchy. A single family or small group provides the leadership and important positions in the government. These positions are inherited by member of the group or their family members. The organization may be a monarchy, with titles passed to family members, or a plutocracy where inheritance of the family fortune includes government position. Alternatively, the organization may be a more typical government apparatus, only with positions of power inherited.

World Law (L)

Siven has a moderate law level with laws covering many areas of government and interaction. These laws are simple enough that most people can act as their own advocate, though for serious issues a professional is recommended. Law enforcement officials will be present, but not in great numbers. All firearms, and anything more destructive, are typically regulated or prohibited.

Imperial Landed Nobility

Siven, as a member world of the Third Imperium has a member of the Imperial Landed Nobility who acts as an Imperial representative to the world.

• It holds the estate of an Imperial knight.

Trade Data

• Importance: 1 (ordinary)

World Economy

• Resources: 5 (scarce)
• Labor: 0 (none available)
• Infrastructure: 1 (extremely limited)
• Efficiency: +1 (average)

World Culture

• Heterogenity: 1 (monolithic)
• Acceptance: 2 (very xenophobic)
• Strangeness: 5 (distinct)
• Symbols: B (abstract)

World Timeline

Major events that have affected this world and the wider region that it lies within:

• circa -250,000: the Ancients are active within the sector.
• -9235: the Vilani discover jump drive technology. Over the centuries pioneers and settlers gradually spread across Charted Space.
• -5400 to -4015: the Vilani Consolidation Wars.
• -4045 to -2204: the Ziru Sirka claims and settles worlds across the region.
• -2404 to -2215: the Interstellar Wars.
• -2204 to -1776: the Rule of Man administers the worlds of the region.
• -1776 to 0: the Long Night.
• The Year 0: the Third Imperium is founded.
• 300-420: the Imperial First Survey charts the system.
• 604-622: the Civil War.
• 624: the Express Boat Network is established.
• 800-820: the Psionics Suppressions.
• 995-1065: the Imperial Second Survey charts the system.
• 1065: the Second Survey is published. Information about the system becomes widely available.

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 Mongoose Publishing or by permission of the author. The page history lists all of the contributions.

• Jim Cunningham, John Harshman, J. Andrew Keith, Marc W. Miller, Gordon Sheridan. Atlas of the Imperium (Game Designers Workshop, 1984), page 21. (charts locating the world)
• Joe Fugate, Gary L. Thomas. Referee's Gaming Kit (Digest Group Publications, 1989), various pages. (background for the sector)
• James Holden, Joe D. Fugate Sr., Terrance McInnes. Vilani & Vargr (Digest Group Publications, 1990), pages 11, 48, 49. (dot maps and charts locating the world)
• Gary L. Thomas. The Travellers' Digest 21 (Digest Group Publications, 1990), page 17. (background for the sector)
• Loren Wiseman. Challenge 75 (Game Designers Workshop, 1994), pages 6, 68. (background for the sector)
• Martin Dougherty. Bearers of the Flame (Avenger Enterprises, 2006), page 87. (the sector around the year 1248, including the world)
• Author & Contributor: Greg Videll of the HIWG (refinement of sector data)
• Author & Contributor: Martin J. Dougherty (development of sector data)
• Author & Contributor: IISS Junior Administrator and Master Astrographer Ensign Phillips