Lon Marin (world)

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This is a world-system under construction and is currently being input-programmed into the Traveller RPG Wiki.

Lon Marin/Loran (Halcyon 2014)
Classic Era (1115)
B687435-9
StarportB Good: Spacecraft Construction, Overhaul, Refined fuel
Size6 Medium (9,600 km, 0.60g - 0.81g)
Atmosphere8 Dense
Hydrographics7 Wet World 70%
Population4 Moderate (60 thousand)
Government3 Self-Perpetuating Oligarchy
Law5 Moderate Law (no concealable weapons)
Tech Level9 Early Stellar (fusion)
See also UWP
System Details
Primary F8 V M4 VI
Planetoid Belts 0
Gas Giants 3
jumpmap?sector=Halcyon&hex=2014&options=8451&jump=3&scale=32&junk=junk.png
Jump map from Travellermap.com [1]

Lon Marin is a pre-agricultural and nonindustrial garden world.

  • Garden worlds are known for their near-ideal utopian environments conducive to most sophonts, plants, animals, and other forms of life.
  • It is a pre-agricultural world with an environment suitable for large scale agricultural and livestock industries that have not yet been widely developed.
  • It requires extensive imports of outside technology to maintain a modern, star-faring society. Having to import most manufactured and high tech goods drives the price up for these items at this world.
  • Its economy and population are growing and living conditions are expected to slowly rise barring outside forces.
  • It is a member of the High Senate in the Loran Subsector of Halcyon Sector, which is part of the Distant Fringe.


Astrography and Planetology[edit]

This star system is detailed using the Fringian Variant System Description.

Binary Solar System[edit]

Lon Marin Binary Star System
Star Name Hierarchy Color Classification Remarks
Lon Marin Primary Primary Yellow-White F8 V
Lon Marin Companion Secondary Red M4 VI


System Data[edit]

Tharsen-Lon Marin System[edit]

The primary is Tharsen, an ordinary yellow-white main sequence star. It has a luminosity of 2.126 Sols, a mass of 1.144 Sols, and a diameter of 1.639 million km. The inner zone consists of (I) a vacuum worldlet, (II) a trace atmosphere inner world, and (III) a corrosive atmosphere inferno world. (IV) Lon Marin orbits within the habitable zone and is designated the mainworld. (V) a dense atmosphere bigworld, (VI) a large gas giant, and (VII) a ringed large gas giant form the outer system. Most of the worlds retain satellites.

Olaf Subsystem[edit]

The companion is Olaf, an ordinary red subdwarf star that orbits Tharsen at 621 AU (orbital position (XIV), 93 billion km) and has an orbital period of 14,450 years. It has a luminosity of 0.0038 Sols, a mass of 0.114 Sols, and a diameter of 167,000 km. (I) a trace atmosphere iceworld, (II) an exotic atmosphere bigworld, and (III) a small gas giant form the outer system. The two outer worlds retain satellites.

Mainworld Data[edit]

(IV) Lon Marin[edit]

(IV) Lon Marin is designated the mainworld. It orbits Tharsen at a mean distance of 1.08 AU (161.6 million km), within the habitable zone. It has an orbital period of 1 year 108 days and a rotation period of 32.5 hours. The axial tilt is 17 degrees. Lon Marin has a diameter 9,516 km, a density of 5.77 g/cm³, and a surface gravity of 0.78 G. The world is geologically active. Its atmosphere is rated as Dense, with a mean surface pressure of 1.87 bar and a composition of 78% nitrogen (N2), 21% oxygen (O2), and 1% argon (Ar), water vapor (H2O), carbon dioxide (CO2), neon (Ne) and other trace gases. Approximately 73% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.5m. Mean surface temperature: 26°C. The atmosphere is dynamic and strong weather systems driven by the star and the seas scour the surface. The climate is seasonal.

Satellite[edit]

Lon Marin retains a single natural satellite, a cratered trace atmosphere worldlet named Tessen:

(IVa) Tessen (UWP G310265-8, orbiting Lon Marin at 14 Diameters/133,000 km)

Mainworld Geography and Topography[edit]

Total surface area: 284 million km², Water surface area: 207 million km², Land surface area: 77 million km².

Native Lifeforms[edit]

Lon Marin, the mainworld, has extensive, abundant native life, with complex organisms inhabiting every ecological niche. Their metabolic functions drive the process of atmospheric renewal.

History & Background (Dossier)[edit]

No information yet available.

World starport[edit]

Lon Marin has a good quality starport.

  • A Class-B Starport Facility has not very well developed shipyards and is only capable of producing spaceships.
  • This facility has many very skilled personnel who can perform not only major repair work, but overhaul work as well.
  • This facility has advanced refueling and refining infrastructure. One may purchase practically any kind of refined fuel here.
  • Almost every starport of this class possesses both a Lowport and a Highport. Such ports rarely have more than one of each kind of port.

World technology level[edit]

Lon Marin possesses a Technology Level of TL–9.

  • Common Communication technologies for this TL include: Fiber optics and satellite communication and data networks.
  • Common Power Generation technologies for this TL include: Early fusion power.
  • Common Transportation technologies for this TL include:
    • Land: Ultra high-speed trains and early grav vehicles.
    • Water: High efficiency sailcraft, multihulled seacraft, improved artificial gears.
    • Air: Tiltrotorcraft, exotic VTOL's, PARWIG, and rocket-assisted suborbitals.
    • Space: SSTO spacecraft, early military spacecraft, and interstellar STL starships
    • FTL: Prototype Jump Drive-1.

World government[edit]

Lon Marin has a Self-Perpetuating Oligarchy government.

  • It is a government by a restricted minority, with little or no input from the masses.
  • The typical power source of this government is an Oligarchy.
  • The typical power structure of this government is a Hegemony.

World military[edit]

No information yet available.

World economy[edit]

No information yet available.

Trade data[edit]

No information yet available.

World demographics[edit]

No information yet available.

World culture[edit]

No information yet available.

Historical data[edit]

World timeline[edit]

No information yet available.

UWP listing[edit]

No information yet available.

References & Contributors / Sources[edit]

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This article was copied or excerpted from the following copyrighted sources and used under license from Far Future Enterprises or by permission of the author.

  1. "Jump Map API" and map location from Travellermap.com