Mer (world)

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

Mer/Caledon (Reaver's Deep 2414)
Classic Era (1115)
C79A520-8
StarportC Routine: No Construction, Major Repair, Unrefined fuel
Size7 Medium (11,200 km, 0.70g - 0.94g)
Atmosphere9 Dense (tainted)
HydrographicsA Water World 100%
Population5 Moderate (400 thousand)
Government2 Participating Democracy
Law0 No Law
Tech Level8 Pre-Stellar (superconductors)
See also UWP
System Details
Primary G2 V M9 V
Planetoid Belts 2
Gas Giants 4
jumpmap?sector=Reaver%27s+Deep&hex=2414&options=8451&jump=3&scale=32&junk=junk.png
Jump map from Travellermap.com [1]

Mer 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.
  • It is a member of the Third Imperium in the Caledon Subsector of Reaver's Deep Sector in the Domain of Ilelish.

Description (Astrography & Planetology)[edit]

The water world of Mer is a large planet which is practically without land.

  • Several very small islands have been discovered, but these are little more than small rocks dotting the otherwise unbroken expanse of a world-girdling ocean.
  • This system is part of the Gerim Trace.

Binary Solar System[edit]

Mer Binary Star System
Star Name Hierarchy Color Classification Remarks
Mer Primary Primary Yellow G2 V "Daybright"
Mer Companion Secondary Red M9 V "Night Glimmer"


Native Lifeform : Lanceshark[edit]

Early visitors discovered that vast migratory schools of small aquatic omnivore/eaters, known as Lancesharks. The behavior of lanceshark schools, made it most economical for fishing communities to follow schools on their travels. Hence the great raft communities of Mer.

Point of Interest: City Ships of Mer[edit]

Settlement on Mer has taken an unusual form: floating cities.

In general, a raft community is a large, powered, town-sized ship which can hold several hundred people. Communities follow specific schools on their migrations, trawling for Lancesharks as they go. Raft communities support more than just fishermen; they are complete towns sailing the high seas.

The raft communities generally cooperate in a loose planetary government; they form a sort of participatory democracy in which "ship's officers" of each community have a franchise, and a direct vote by radio in all matters concerning the planet as a whole. One of the larger islands holds the starport, and other islands hold repair facilities for raft communities damaged by storms or by encounters with the human's main competition for lanceshark schools, the large, stupid, but dangerous gulperwhales.

In addition to these natural hazards, there are occasional problems of human origin. The fishing culture of Mer is clannish and prone to disputes; vendettas are common, not only between individuals, but between whole communities. Incidents of piracy or vandalism against raft communities are reported, usually prompted by some long-standing grudge between communities. From time to time, too, outsiders have been know to attack rafts, pillage the community, and then attempt to lay the blame on a vendetta situation.

System Data[edit]

Primary: Daybright, spectral class F8V. ICN S4G0804F8V. Mass 1.144 standard. Stellar diameter, 1.178 standard. Luminosity, 2.125 standard.

Planetary System: Ten major bodies. One inhabited world (Mer, III). Four gas giants in system. Two planetoid belts in system.

III Mer: Mean orbital radius, 101.73 million kilometers (0.68 AU). Period, 191.5 days. One satellite. Diameter, 11565 kilometers. Density, 0.96. Mass, 0.643 standard. Mean surface gravity, 0.84 G. Rotation period: 22 hours, 50 minutes, 8 seconds. Axial inclination, 4°49'48.4". Albedo, 0.52. Surface atmospheric pressure, 2.2 atm. Composition, oxygen-nitrogen mix with oxygen imbalance. Respirator masks required to breathe atmosphere. Hydrographic percentage, nearly 100%; composition, water and frozen water-ice. Mean surface temperature, 30°C.

History & Background (Dossier)[edit]

No information yet available.

References & Contributors (Sources)[edit]

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