Oirios (world)

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

Oirios/Sena (Halcyon 1128)
Classic Era (1115)
C223213-9
StarportC Routine: No Construction, Major Repair, Unrefined fuel
Size2 Small (3,200 km, 0.10g - 0.17g)
Atmosphere2 Vacuum (very thin - tainted)
Hydrographics3 Wet World 30%
Population2 Low (100)
Government1 Company/Corporation
Law3 Low Law (no automatic weapons)
Tech Level9 Early Stellar (fusion)
See also UWP
System Details
Primary K9 V
Planetoid Belts 1
Gas Giants 1
jumpmap?sector=Halcyon&hex=1128&options=8451&jump=3&scale=32&junk=junk.png
Jump map from Travellermap.com [1]

Oirios is a poor, low-population world with a population of less than 10,000 sophonts in population size.


Astrography and Planetology[edit]

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

Monostellar System[edit]

Oirios Monostellar System
Star Name Hierarchy Color Classification Remarks
Oirios Primary Orange K9 V


System Data[edit]

Koochi-Oirios System[edit]

The primary is Koochi, an ordinary orange main sequence star. It has a luminosity of 0.048 Sols, a mass of 0.5052 Sols, and a diameter of 769,000 km. (I-I) a very thin atmosphere hospitable world, and (I-II) Oirios, designated the mainworld, have a shared orbit within the habitable zone. (II-I) a corrosive atmosphere inferno world, (II-II) an exotic atmosphere stormworld, (II-III) a very thin atmosphere hospitable world, (III) an exotic atmosphere bigworld, (IV) a trace atmosphere iceworld, (V) a dense icy planetoid belt, (VI) a large gas giant, (VII) a trace atmosphere iceworld, and (VIII) a vacuum iceworld form the outer system. Many of the worlds retain satellites.

Mainworld Data[edit]

(I-II) Oirios[edit]

(I-II) Oirios is designated the mainworld. It orbits Koochi at a mean distance of 0.22 AU (32.9 million km), within the habitable zone. It has an orbital period of 53 days 1 hour: it is tidally locked to Koochi. The axial tilt is 17 degrees. Oirios has a diameter of 2,935 km, a density of 4.46 g/cm³, and a surface gravity of 0.19 G. The world is geologically active. Its atmosphere is rated as Very Thin, Tainted, with a mean surface pressure of 0.18 bar and a composition of 87% nitrogen (N2), 12% oxygen (O2), and 1% argon (Ar), water vapor (H2O), carbon dioxide (CO2), neon (Ne) and other trace gases. The taint is caused by the low percentage of atmospheric oxygen. Approximately 33% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.6m. Mean surface temperature: 12°C. The climate is rated as Temperate-Cool and experiences minor seasonal changes during the local year. The atmosphere is sluggish and weak weather systems driven by the star and the seas drift across the globe.

Mainworld Geography and Topography[edit]

Total surface area: 27 million km², Land surface area: 18 million km², Water surface area: 9 million km².

Native Lifeforms[edit]

Koochi-Oirios System[edit]

The temperate hospitable world lying in orbital position (I-I) (within the habitable zone) has primitive native life, consisting almost entirely of microscopic cyanobacteria-parallels that exist in most ecological niches. Their metabolic functions maintain the process of atmospheric renewal.

Oirios, the mainworld, has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in almost every ecological niche. Their metabolic functions maintain the process of atmospheric renewal.

The cold marginally hospitable world lying in orbital position (II-III) (within the H+ region of the outer system) has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in any location where they can find even a minimal trace of shelter and warmth. Their metabolic functions maintain the process of atmospheric renewal.

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

History & Background (Dossier)[edit]

No information yet available.

World starport[edit]

Oirios has a routine quality starport.

  • A Class C Starport Facility has minimal if any shipyards and can only perform extremely limited repair work.
  • This facility has many very skilled personnel who can perform surprisingly sophisticated repair work despite the limited facilities.
  • This facility has refueling infrastructure and limited refining capabilities. One may purchase unrefined fuel here.
  • Starports of this class rarely have both a Lowport and a Highport.

World technology level[edit]

Oirios 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 (System Craft), and interstellar STL starships
    • FTL: Prototype Jump Drive-1.

World government[edit]

Oirios has a Corporate or Company government. It is a Corporate Polity.

  • Government is by a company managerial elite and citizens are typically company employees.
  • The typical power source of this government is an Oligarchy.
  • The typical power structure of this government is a Hegemony.

World military[edit]

Oirios has no domestic armed forces.

World Economy[edit]

  • Resources: 9 (Moderate)
  • Labor: 1 (Tens)
  • Infrastructure: 1 (Extremely limited)
  • Efficiency: −3 (Poor)

Trade Data[edit]

No information yet available.

World Demographics[edit]

Population 100

Port Oirios[edit]

Port Oirios is the main downport. Oirios Startown, adjacent to the downport, is home to the world's entire population. The community is broadly dispersed.

Oirios Surface Storage Facility[edit]

A vast holding facility run by the corporate government. The facility is largely automated and contains a large number of semi-autonomous robots, including self-driving vehicles, which carry out mundane duties. The corporation employs mercenary Security forces to police the facility.

World Culture[edit]

  • Homogeneity: 3 (Monolithic)
  • Acceptance: 1 (Extremely xenophobic)
  • Strangeness: 7 (Insular, hierarchical)
  • Symbols: 6 (corporate terminology)

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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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