Bellerophon (SR 1519) (world)

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Bellerophon/Esperance (Solomani Rim 1519)
Interstellar Wars
StarportA Excellent: Starship Construction, Overhaul, Refined fuel
Size8 Large (12,800 km, 0.80g - 1.08g)
Atmosphere8 Dense
HydrographicsA Water World 100%
Population8 Moderate (300 million)
Government5 Feudal Technocracy
Law3 Low Law (no automatic weapons)
Tech LevelA Early Stellar (jump drive)
Classic Era (1115)
StarportA Excellent: Starship Construction, Overhaul, Refined fuel
Size8 Large (12,800 km, 0.80g - 1.08g)
Atmosphere8 Dense
HydrographicsA Water World 100%
Population9 High (2 billion)
Government8 Civil Service Bureaucracy
Law6 Moderate Law (no firearms except shotguns)
Tech LevelE High Stellar (anti-grav cities)
See also UWP
System Details
Primary M1 V
Planetoid Belts 3
Gas Giants 3

Bellerophon is a high-population, pre-rich water world with a billion or more sophonts in population size.

  • This world 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.
  • It lacks adequate resources to expand its economy to a rich status.
  • Its economy and population are rapidly growing and living conditions are expected to quickly rise barring outside forces.
  • This a "high technology" world with technology achievements at, near, or over technology standards for Charted Space.
  • 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.
  • It is a member of the Vegan Autonomous District, a cultural region and full member state of the Third Imperium in the Esperance Subsector of Solomani Rim Sector in the Domain of Sol.
  • A little over 90% of the population is composed of humans and other non-human sophonts.
  • A little under 10% of the population is composed of Vegans.
  • This world was formerly known as Iinu (Anglic:


Description (Astrography & Planetology)[edit]

Bellerophon is a high-population water world located on the Rim Main within Esperance Subsector.

Monostellar System[edit]

Bellerophon Monostellar System
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)

M1 V

Primary Main Sequence 0.4574 2600 - 3500 0.033
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.00475 0.01516 0.15 - 0.24 0.475 4.75
Orbit #  *  * 0 1 6

IISS GURPS Astrographics Survey[edit]

1519 Bellerophon (Vegan Autonomous Region)

Starport: Class V - None.

Diameter: 8,200 miles (13,100 km). Gravity: 1.05g.
Atmosphere: Dense oxygen-nitrogen.
Hydrographics: 99%.
Climate: Warm.
Population: 2.4 billion.
Government: Meritocracy.
Control Level: 4.
Tech Level: 11.
World Trade Number: 5.5.

System Data[edit]

No information yet available.

Mainworld Data[edit]

The planet has a pleasant climate, ranging from tropical at the equator to cool at the poles, but the vast ocean serves to moderate climatic extremes. There are periodic seasonal Coriolis storms — called yaz yugiyor locally — which can grow to awesome dimensions as they cross thousands of kilometers of unbroken sea, but these are dangerous only to small boats and aircraft which venture too far from inhabited regions, into places where weather satellite predictions are not available.

Mainworld Size (S)[edit]

No information yet available.

Mainworld Atmosphere (A)[edit]


Mainworld Hydrosphere (H)[edit]

No information yet available.

Mainworld Geography & Topography[edit]

Bellerophon is a water world; except for a few islands and for reef-flats exposed only at low tide, the entire surface is covered by water.

Mainworld Map[edit]

A map of Bellerophon.
Bellerophon World Map Adv09.jpg

Moon: Anteia[edit]

Anteia, Bellerophon's single large, close moon, cause daily high tides of between 20 and 30 meters.

Native Lifeforms[edit]

Bellerophon contains a number of celebrated and well-known species of fauna and flora. These biota are often featured in books of popular fiction and on the Tri-D.


Bellerophon is well-knopwn for at least two members of its fauna:

  • Chimearoc, a large serpentine flyer, known for interacting with the Daghadasi.
  • Daghadasi, a huge sea-dwelling beast that resembles a free-floating island, complete with its own ecosystem of local flora and fauna.
  • Skreekers, small, shrimp-like creatures that perform a role similar to Terran planktons and algae.
  • Yilani, A poisonous eel-like creature that lives in the "reefs" lining the underwater side of a Daghadasi's body.


Bellerophon's flora, for the most part, is considered typical for an ocean (marine) world and hasn't attracted as much popular attention as its fauna. However, one particular kind of flora is an important part of the of the Daghadasi food chain, which helps to maintain the O2-CO2 atmosphere of the planet.

  • Greenmats, the only dedicated photosynthetic life on Bellerophon.

Point of Interest: Bellerophon Sea-bottom Complexes[edit]

The Bellerophon Sea-bottom Complexes are one of the most-studied undersea megastructures in Charted Space.

History & Background (Dossier)[edit]

No information yet available.

Imperial Landed Nobility (N)[edit]

Bellerophon, as a member world of the Third Imperium, holds the estates of three members of the Imperial Nobility, who are charged with overseeing the world.

World Starport (Sp)[edit]

Bellerophon has a Class A Starport, an excellent quality installation which includes all the expected amenities including refined fuel for starships, brokerage services for passengers and cargo, and a variety of ship provisions. There is a shipyard capable of doing annual maintenance, overhauls and other kinds of repair, and construction of both starships and non-starships. Most ports of this classification have both a Highport and a Downport.

  • Pegasus Starport is a class A facility built into and across one of the few permanent islands on the planet.
  • This island, landing site for the world's original settlers thousands of years ago, has long since vanished under the office skyscrapers, administrative centers, dockyards, landing bays, warehouses, and maintenance complexes that make up the starport. Regular gravitic shuttles run from the port to all of Bellerophon's major pylon cities; the nearest city is also one of the largest — Phocaea, a 3 km-tall city complex located 375 kilometers south of Pegasus.

World Population (P)[edit]

No information yet available.

World Demographics[edit]

Humaniti, population 95%

  • Other, population 5%

It is one of four worlds in the Vegan Autonomous District with an almost completely human population.

  • Vegans find Bellerophon's gravity excessive and are rarely encountered on the world.

World Government (G)[edit]

Bellerophon is governed by a Civil Service Bureaucracy. The leadership of the government is another form (democracy, dictatorship, oligarchy), but the bureaucracy leadership influences policy. The government leadership may select the bureaucracy leadership, but not its membership. Usually the governmental leadership is divided, or incapable of setting policy and the bureaucracy provides a stabilizing influence. The bureaucracy may be the full government bureaucracy or a section with limited jurisdiction but considerable influence like the military.

  • Bellerophon's capital is Korinthea, one of a cluster of pylon cities built along the Isandros Shallows south of Pegasus Starport. Most of the Vegans on Bellerophon have their offices and homes here, in the upper, gravitic compensated floors of the tower; most members of the Vegan civil service on the world, however, are human, including all members of the constabulary. Detachments of the constabulary at Korinthea and Pegasus starport are the only major military forces on the planet.
  • In most respects, Bellerophon is self-governing; the civil service defines each city as a separate tuhuir (the unit of Vegan society), and the internal affairs of tuhuir are their own concern.

World Law Level (L)[edit]

Customs, trade, and commerce restrictions are loose, but laws are well enforced. In the pylon cities, weaponry is discouraged. Special permits allow the use of weaponry up to the level of military lasers and various heavy support weapons by groups with a specific need for such arsenals; permit holders include the various sea nomads and Seaharvester, as both groups require sophisticated weaponry to practice their trades. Permits are extremely hard to obtain.

World Technology Level (TL)[edit]

Bellerophon possesses a Technology Level of TL–14 or TL-E in Hexadecimal Notation.

  • Common Communication technologies for this TL include: Early meson communicators.
  • Common Power Generation technologies for this TL include: Miniature super-batteries, early collectors, and advanced fusion plants.
  • Common Transportation technologies for this TL include:
  • While fusion power is cheap and in common use everywhere, many of the pylon cities still make use of tidal power generators, anachronistic holdovers from Bellerophon's earliest days.
  • Please see Seasteading and Floating_cities for more information.

World Military[edit]

No information yet available.

World Economy[edit]

No information yet available.

Trade Data[edit]

No information yet available.


Despite being a water world, the planet supports a thriving population of over two billion people; most are concentrated in magnificent pylon cities which rise from the ocean shallows, thrusting two and sometimes three or more kilometers into the sky. Sea-bottom complexes and free-floating raft-cities are also present, and there is a considerable population — numbering in the tens of millions — of so-called "sea nomads" living aboard large ship-cities which follow herds of marine creatures that provide them with a livelihood.

Bellerophon's primary urban developments are present in the following forms:

  • Pylon Cities (Arcologies, a type of Megastructure)
  • Sea-bottom Complexes (TL-10+ Undersea City, a type of Megastructure)
  • Free-floating Raft-cities (Seasteading Island City)
  • "Sea Nomads" on Ship-cities (Seasteading Megaship}

World Infrastructure[edit]

This world possesses TBD infrastructure.

World Culture[edit]

No information yet available.

World Language/s[edit]

Historical Data[edit]

Bellerophon was orignally established as a naval base of the Terran Confederation during the Interstellar Wars. Civilian settlers were brought in to help support the base, saving the navy the expense of shipping in food and raw materials. The majority of the settlers were "voluntary colonists" from the politically troubled Eastern Aegean region of Terra. A government subsidized colonization program brought several waves of immigrants of Greek and Turkish background to the world, where they spread to the scattered islands and began to establish themselves as fishermen; the first of the nomadic sea communities began around this date, ranging the oceans in the wake of Bellerophon's enormous marine grazers, the Daghadasi.

The fleets eventually moved on, and the base on Anteia was abandoned, but seawater metal-reclamation processors provided the economic basis for the first pylon cities and for prosperity.

Like most worlds, Bellerophon suffered somewhat during the Long Night, but its economic attachment to the Vegan Polity allowed the world to maintain advanced technology. During this period, many Vegan customs were adopted by the pylon cities; the Vegan idea of extreme cultural pluralism helped to insulate Bellerophon's societies from change, and its many cultures have remained remarkably stable through most of the world's history.

The rise of the Third Imperium and the period of Solomani rule made little difference except at the high levels of government. After the Solomani Rim War, Bellerophon's ties with the Vegan worlds made its inclusion into the Vegan Autonomous District natural. Again, only the planetary government changed: the Vegan civil service was substituted for the previous Solomani Party bureaucracy.

World Timeline[edit]

No information yet available.

UWP Listing[edit]

No information yet available.

References & Contributors (Sources)[edit]

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