728-907 (world)

728-907/Vilis (Spinward Marches 1214)
Classic Era (1116)	E955000-0 Starport E Frontier - no facilities Size 9 Large (14,400 km, 1.03g - 1.33g) Atmosphere 5 Thin 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
System Details
Primary	F1 V M2 V
Planetoid Belts	1
Gas Giants	0

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Jump map from Travellermap.com

728-907 is a barren world with no overt population, government, or law level.

• This world could be populated if anyone had an inclination to do so...
• It is a member of the Third Imperium in the Vilis Subsector of Spinward Marches Sector in the Domain of Deneb.
• This is a temperate world, with a climate of pleasant, average temperatures, considered to be an ideal or near-ideal environment by many different sophont species.

Description (Astrography & Planetology)

Stellar Data

728-907 is a binary star system.

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

728-907 has two stars in the star system.

Primary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	F1 V	Main Sequence (Dwarf)		1.5	6820 - 7020	4.13351
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0156	0.1686	1.8 - 3.11	1.56	15.6
	Orbit #	*	0	5	4	8
	Remarks
Secondary
	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

System Data

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

• The mainworld.
• x8 secondary rocky worlds.
• x1 planetoid belt.

Mainworld Data

728-907 is a very large but low-density world with little gravity and thus a thin atmosphere for its size. Low density implies few useful mineral deposits.

Mainworld Size (S)

728-907 is a Big World between 13,600km and 15,200km in diameter. The world has a standard gravity between 1G and 1.3G. The horizon will appear about 5.4km away. Vessels with only 1G of thrust should avoid landing on this world.

Mainworld Atmosphere (A)

728-907 has a pressure of 0.43 to 0.70 atmospheres. The Thin Atmosphere does not require survival gear although it may be hard on sophonts not accustomed to it.

• It experiences moderate temperatures.

Mainworld Hydrosphere (H)

728-907 has 45-55% of its surface covered by liquid water. Wilderness refueling is possible.

Mainworld Geography and Topography

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

(Blank map, predominantly dry world.)

Native Lifeforms

Recently surveyed, 728-907 is a large inhabitable world with no evidence of higher animal life although extensive forestation and insect presence have been noted.

History & Background (Dossier)

728-907 is a barren world with no formal settlement on it yet. A small scout and scientific outpost are the only known signs of civilization. The Ministry of Colonization has designated the world for seeding within the next century, with a view to colonization upon availability of personnel and funds.

World Starport (St)

728-907 has a Class E Starport, a frontier quality installation with few expected amenities. There is unrefined fuel for starships and a limited variety of ship provisions. There is no shipyard of any kind, but there may be parts and technical support for doing minor services and repair. Ports of this classification generally consist of a downport.

World Population (P)

728-907 is a Barren World with no sophont population. It may still possess lifeforms.

• A few Scout personnel may sometimes be present on the world.

World Technology Level (T)

728-907 possesses a Tech Level of TL–0.

• The world has no technological base.

World Government (G)

728-907 has no government or ruling authority of any kind.

World Law (L)

728-907 has no law level. No laws of any kind are enforced.

Trade Data

• Importance: -3 (very unimportant)

World Economy

• Resources: 2 (very scarce)
• Labor: 0 (none)
• Infrastructure: 0 (non-existent)
• Efficiency: -5 (extremely poor)

World Culture

• Heterogenity: 0 (none)
• Acceptance: 0 (none)
• Strangeness: 0 (none)
• Symbols: 0 (none)

World Timeline

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

• The Year 0: the Third Imperium is founded.
• 300-420: the Imperial First Survey charts the system.
• 589-604: First Frontier War.
• 604-622: the Civil War.
• 615-620: Second Frontier War.
• 624: the Express Boat Network is established.
• 979-986: Third Frontier War.
• 995-1065: the Imperial Second Survey charts the system.
• 1065: the Second Survey is published. Information about the system becomes widely available.
• 1082-1084: Fourth Frontier War, also known as the False War.
• 1107-1110: Fifth Frontier War.

Later Historical Eras

The mainworld was renamed Port Anselm by 1200.

Historical data: Era: Milieu 1248

By 1248 the world has been named Iazhipl.

The world was overrun by Zhodani refugees, many of whom ended up getting trapped on this forgotten world. Since they so massively outnumbered the original population, and since the original population had no real government as such, the Zhodani ended up taking over the world. At this point, the world is run in a Zhodani manner, and has been given a new Zhodani name. At first the original occupants of the world were very unhappy about the changes, but today, everyone seems happy with the current situation.

---

IISS GURPS Astrographics Survey

1214 728-907 (Imperial)

Starport: Class II.

Diameter: 9,421 miles (15,100 km).
Atmosphere: Thin oxygen-nitrogen.
Hydrographics: 47%.
Climate: Normal.
Population: 6 (Scout Service personnel assigned to operating the emergency-landing facility).
Government: Semi-Military (Scout Service).
Control Level: 0.
Tech Level: 12.
World Trade Number: 0.5.

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), 14-15.
• Marc Miller. The Spinward Marches Campaign (Game Designers Workshop, 1985), 18-19.
• Marc Miller. Imperial Encyclopedia (Game Designers Workshop, 1987), 94-100. (UWP only)
• Loren Wiseman. "Kiraag Research Station." Challenge 51 (1991): 14-19.
• Rob Caswell. "Domain of Deneb: Sector Data." MegaTraveller Journal 3 (1992): 47-58. (UWP only)
• Dave Nilsen. The Regency Sourcebook (Game Designers Workshop, 1995), 40-41. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 64.
• Mike West. The Spinward States (Avenger Enterprises, 2008), 100,101.
• Martin Dougherty. The Spinward Marches (Mongoose Publishing, 2008), .
• Martin Dougherty. Behind the Claw (Mongoose Publishing, 2019), 61-66. (UWP only)