Meroan (world)

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

Meroan/Ras Tennol (Far Home 2113)
Classic Era (1115)
StarportD Poor: No Construction, Minor Repair, Unrefined fuel
Size8 Large (12,800 km, 0.80g - 1.08g)
Atmosphere7 Standard (tainted)
HydrographicsA Water World 100%
Population5 Moderate (300 thousand)
Government6 Captive Government/Colony
Law4 Moderate Law (no light assault weapons)
Tech Level5 Industrial (mass production)
See also UWP
System Details
Primary F1 IV M7 V
Planetoid Belts 2
Gas Giants 3

Meroan is a nonindustrial water world, which has 90% or more of its surface covered in an ocean of water.

  • The inhabitants of this world live on the roughly 10% of exposed land mass, in underwater colonies, on city ships, or similar arrangements.
  • As a nonindustrial world, it requires extensive imports of outside technology to maintain a modern, star-faring society. The need to import most manufactured and high technology goods drives the price of these goods up in the open market.
  • This a "low technology" world with technology competency well below technology standards for Charted Space.
  • It is a part of the Occupied Territories in the Ras Tennol Subsector of Far Home 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]

Meroan Binary Star System
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)


Primary Giant 2.4 6700 - 7300 17.6
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.02494 0.34797 3.34 - 5.44 2.494 24.94
Orbit #  * 1 6 5 8
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)

M7 V

Secondary Main Sequence 0.273 1900 - 2700 0.004
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.0026 0.00525 0.05 - 0.08 0.26 2.6
Orbit #  *  *  * 0 5
785 AU from primary

System Data[edit]

Achenak-Meroan System[edit]

The primary is Achenak, a yellow-white subgiant star. It has a luminosity of 17.6 Sols, a mass of 2.4 Sols, and a diameter of 3.729 million km. The inner system consists of (III-I) an exotic atmosphere radworld, (III-II) a corrosive atmosphere inferno world, (IV) a trace atmosphere inner world, (V) an exotic atmosphere stormworld, and (VI) Meroan, designated the mainworld – orbital positions (I) and (II) are empty. (VII) a corrosive atmosphere inferno world orbits within the habitable zone. (VIII-I) a ringed large gas giant, and (VIII-II) a large gas giant form the outer system. Many of the worlds retain satellites.

Pythora Subsystem[edit]

The companion is Pythora, a dim red main sequence star lying approximately 785 AU (117.4 billion km) from Achenak. It has a luminosity of 0.004 Sols, a mass of 0.273 Sols, and a diameter of 414,000 km. (I) a vacuum worldlet, (II) a sparse icy planetoid belt, (III) a ringed very large gas giant, and (IV) a dense icy planetoid belt form the outer system. Many of the worlds retain satellites.

Mainworld Data[edit]

(VI) Meroan[edit]

(VI) Meroan is designated the mainworld. It orbits Achenak at a mean distance of 3.1 AU (463.8 million km), within the H– region of the inner system. It has an orbital period of 3 years 191 days and a rotation period of 29 hours. The axial tilt is 22 degrees. Meroan has a diameter of 13,002 km, a density of 5.72 g/cm³, and a surface gravity of 1.05 G. The world is geologically active. Its atmosphere is rated as Standard, Tainted, with a mean surface pressure of 1.03 bar and a composition of 77% nitrogen (N2), 21% oxygen (O2), 1% argon (Ar), and 1% water vapor (H2O), carbon dioxide (CO2), ozone (O3), neon (Ne) and other trace gases. The taint is caused by trace airborne contaminants of organic origin that produce a psychological response in humans. Approximately 97% of the surface is covered in oceans of liquid water: average tidal ranges exceed 0.85m. Mean surface temperature: 24°C. The climate is rated as Temperate-Warm and experiences minor seasonal changes during the local year. The atmosphere is very active and powerful weather systems driven by the star and the oceans surge across the globe.


Meroan retains a single natural satellite, a trace atmosphere worldlet named Changu:

(VIa) Changu (UWP H310000-0, orbiting at 40 Diameters/520,000 km)

Mainworld Geography and Topography[edit]

Total surface area: 531 million km², Water surface area: 515 million km², Land surface area: 16 million km².

  • The atmosphere contains significant traces of chemicals, produced by native organisms, that create a pyschological response in humans. These might include euphoria, mania or hallucinations, and range in severity from mild to extreme.

Native Lifeforms[edit]

Achenak-Meroan System[edit]

Meroan, the mainworld, lying within the H– region of the inner system, has extensive, abundant native life, with complex organisms inhabiting every ecological niche. Their metabolic functions drive the process of atmospheric renewal.

No other world in the system is known to have native life.

Pythora Subsystem[edit]

No world in the subsystem is known to have native life.

History & Background (Dossier)[edit]

No information yet available.

World starport[edit]

Meroan has a Class D Starport, a poor quality installation which has few of the 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 only a downport, unless this is a trade port or system with an hostile environment mainworld.

World technology level[edit]

Meroan possesses a Technology Level of TL–5.

World government[edit]

Meroan has a Captive Government or Colony. The world is ruled by an external government, there is no self-rule. A colony or conquered area. The local government is an oligarchy appointed by, and answerable only to, the external government.

World Military[edit]

Legion Occupation Forces

Meroan Volunteer Army

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]

No information yet available.

World timeline[edit]

No information yet available.

UWP listing[edit]

No information yet available.

References & Contributors / Sources[edit]

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