871-438 (world)

871-438/Jewell (Spinward Marches 1510)
Classic Era (1116)	E722000-0 Starport E Frontier - no facilities Size 7 Medium (11,200 km, 0.70g - 0.94g) Atmosphere 2 Vacuum (very thin - tainted) Hydrographics 2 Dry World 20% 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	M3 V M8 V
Planetoid Belts	0
Gas Giants	1

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Jump map from Travellermap.com

871-438 is a poor, barren hellworld, which would challenge the survival of nearly any sophont in Charted Space if it weren't already barren.

• As a barren world, it has no overt population, government, or law level.
• Hellworlds often offer daily, and sometimes hourly, life-threatening situations to their inhabitants.
• This world could probably be populated by very determined colonists if any had an inclination to do so...
• It is an unclaimed Non-Aligned world located in the Jewell Subsector of Spinward Marches Sector.

• This is a cold world with an overall climate that is at the lower temperature range of human-congruous sophont endurance.
• 871-438 is a member of the Spinward Main.
• This world is sometimes referred to as Diamond.

Description (Astrography & Planetology)

Stellar Data

871-438 is a binary star system.

• Both are red main sequence stars.

871-438 has two stars in the star system.

Primary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M3 V	Main Sequence (Dwarf)		0.37	3270 - 3430	0.03081
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0034	0.0146	0.18 - 0.35	0.34	3.4
	Orbit #	*	*	0	1	5
	Remarks
Secondary
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	M8 V	Main Sequence (Dwarf)		0.085	2420 - 2570	0.00018
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0011	0.0011	0.01 - 0.03	0.11	1.1
	Orbit #	*	*	*	0	3
	Remarks

System Data

The worlds of the system have been surveyed. The system is a known haven for pirates, smugglers and anyone wishing to avoid Imperial contact. The worlds of this system consist of:

• The mainworld with its minimal Class E downport.
• x5 secondary rocky worlds, all small vacuum worlds.
• x1 gas giant offering a refueling possibility.

As well as the mainworld, this system does have another world of note: the only major moon of the system's gas giant. It is an inhospitable frozen iceball tidally locked to its massive gas giant primary. Preliminary scans reported a world with an ice crust, itself covered in a deep layer of dust and regolith. There are suggestions that this crust may cover a sub-ice world-ocean of liquid water.

An alternative system description is available.

Mainworld Data

A rocky iceball with few natural resources, 871-438 is used by the Scouts as a refueling point. No other parties have ever shown much interest in this desolate rock.

Mainworld Size (S)

871-438 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)

871-438 has a pressure of 0.10 to 0.42 atmospheres. The very thin pressures require a respirator or Oxygen Mask. 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 Respirator Combination Mask. Some taints may require more protective equipment. TL–5 or more advanced survival gear is required to settle this world.

• It experiences very low temperatures.
• The world’s atmosphere is tainted with what are describled as "industrial pollutants", chiefly nitrogen dioxide (NO₂), carbon monoxide (CO), sulfur dioxide (SO₂), and ammonia (NH₃). The sources of these gases remains uncertain - given that they persist in the atmosphere they are likely of natural origin, though the exact process that generates them is unknown - plus no trace of any industrial civilization that could have produced them exists.
• Breathing the atmosphere without a filter mask will cause a variety of respiratory conditions.

Mainworld Hydrosphere (H)

871-438 has 15-25% of its surface covered by liquid water or ice. There may be a few small seas. Wilderness refueling is possible. Water for the inhabitants needs to be imported and extensively recycled. These worlds are Hell Worlds or Poor Worlds depending on their atmosphere.

• Much of the surface is arid and hostile.
• The seas and lakes are crusted with pack ice.

Mainworld Geography and Topography

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

(Blank map, predominantly dry world.)

History & Background (Dossier)

The planet is bitterly cold, requiring any potential settlement effort to use sealed or underground facilities. The system's location has no particular strategic or economic importance and it has little in the way of easily obtainable natural resources. Located on a coreward spur of the Spinward Main away from any major trade routes, it is considered a Backwater's Backwater. For the past millennium the system has largely been ignored.

World Starport (St)

871-438 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)

871-438 is a Barren World with no sophont population. It may still possess lifeforms.

World Technology Level (T)

871-438 possesses a Tech Level of TL–0.

• The world has no technological base.

World Government (G)

871-438 has no government or ruling authority of any kind.

World Law (L)

871-438 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 (uninhabited)
• 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.
• 800-820: the Psionics Suppressions.
• 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.

]-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

History-Era: Regency

The world was renamed to Ijiwa Mines in the 1200s.

Alternate Data

In the year 1120, the Domain wide corporation X-TEK Industries, LIC registered a claim to the mainworld via the Imperial Corporate Planetary Acquisitions Act. X-TEK's claim to the world was for a testing facility for weapons and starships.

Phase I, the creation of a class D/II starport on the surface, has been completed as of 150-1120. This was a 'landgrab' operation involving 10,000 workers taking nearly a month to complete. This facility was to be the staging point for the construction of the research facility at Area 51. Area 51 being the ice plain 50mi north of the starport originally mapped by the IISS and the area X-TEK has designated as its testing range and proving ground. This facility is now fully operational and not open to the public.

Phases II and IIIa, now completed, involved systematic upgrades to the starport facilities. The starport is now (as of 001-1122) fully upgraded to a Class B/IV with limited highport and non-starship shipyards. A small fleet of Viper-class SDB patrol the area. Phase IIIb will involve upgrading the shipyard to a full starship yard. The X-TEK facility will upgrade from an Upgrade and Repair shop to a full corporate owned and operated X-TEK shipyard. It is expected that it will take 11,000 workers nearly a year to complete.

Rumors are unsubstantiated at this time in that the Archduke is planning to place a Naval Base at Diamond (871-438). If so this would mean thousands of new jobs as X-TEK would be given a huge naval contract. Such a base would enact serious political repercussions given Diamond's proximity to the Federation of Arden.

Currently, minor trade routes have been established with Extolay mostly in the field of Naval equipment for the base at that world and, surprisingly, Ruie with 2 Imperial member states importing high technology and ore.

The other world of note seems to have been a sister to the mainworld which had been thrown off its orbit with the gas giant to form one of its own. This ammonia world has an eccentric and retrograde orbit. It is believed that this world had a far orbit from the gas giant and may have been pulled away when the white dwarf companion came within its closest approach. The world has an exotic atmosphere and is unsuited for any surface installation ,however X-TEK has plans to harvest chemicals from the atmosphere.

---

IISS GURPS Astrographics Survey

1510 871-438 (Imperial)

Starport: Class I.

Diameter: 6,961 miles (11,100 km).
Atmosphere: Very thin oxygen-nitrogen tainted by industrial pollutants.
Hydrographics: 15%.
Climate: Frozen.
Population: None.
Government: None.
Control Level: 0.
Tech Level: 8.
World Trade Number: 1.

References & Contributors (Sources)

This article has metadata.

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), 12-13.
• 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), 37. (UWP only)
• Martin Dougherty, Neil Frier. Behind the Claw (Steve Jackson Games, 1998), 60.
• Hans Rancke-Madsen. "Worlds Within Jump-6 of Regina", JTAS Online (July 18, 2006)
• Mike West. The Spinward States (Avenger Enterprises, 2008), 99. (UWP only)
• Martin Dougherty. The Spinward Marches (Mongoose Publishing, 2008), .
• Martin Dougherty. Behind the Claw (Mongoose Publishing, 2019), 32-39.
• Martin Dougherty. Flashpoints (Mongoose Publishing, 2024), 104.
• User:Khan trav.Trouble in the Spinward Marches PBEM Campaign
• Paul Dale - TML Landgrab
• William "Commander X" Prankard - TML Landgrab ^{dead link}