Iridina (world)

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

Iridina/Demon's Eye (Far Home 1023)
Classic Era (1115)
StarportC Routine: No Construction, Major Repair, Unrefined fuel
Size3 Small (4,800 km, 0.24g - 0.34g)
Atmosphere3 Vacuum (very thin)
Hydrographics1 Dry World 10%
Population5 Moderate (300 thousand)
Government8 Civil Service Bureaucracy
Law7 Moderate Law (no firearms)
Tech Level6 Pre-Stellar (nuclear)
See also UWP
System Details
Primary M3 V M8 VI
Planetoid Belts 2
Gas Giants 3
Jump map from [1]

Iridina is a poor, nonindustrial world.

  • 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 world has few prospects for economic development.
  • It is a Non-Aligned world dominated by human sophonts located in the Demon's Eye Subsector of Far Home Sector.

Astrography and Planetology[edit]

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

Binary Solar System[edit]

Iridina Binary Star System
Star Name Hierarchy Color Classification Remarks
Iridina Primary Primary Red M3 V
Iridina Companion Secondary Red M8 VI 3.04 AU from primary

System Data[edit]

Jem-Iridina System[edit]

The primary is Jem, an ordinary red main sequence star. It has a luminosity of 0.0202 Sols, a mass of 0.3942 Sols, and a diameter of 604,000 km. (I-I) Iridina, designated the mainworld, (I-II) a very thin atmosphere iceworld, (II) a small gas giant, (III) a ringed small ice giant, and (IV) a vacuum iceworld form the inner part of the outer system. Orbital positions (V) through (VIII) are unavailable due to the presence of the companion star. (IX) a dense icy planetoid belt forms the outer part of the outer system. Many of the worlds retain satellites.

  • The star experiences periodic flare activity.

Garnet Subsystem[edit]

The companion is Garnet, a dim red subdwarf star that orbits Jem at a mean distance of 3.04 AU (orbital position (VI), 454.8 million km) and has an orbital period of 8 years 11 days. It has a luminosity of 0.00054 Sols, a mass of 0.07 Sols, and a diameter of 91,500 km. (I-I) a sparse icy planetoid belt, (I-II) a small gas giant, and (II) a vacuum worldlet form the outer system. Only the gas giant retains satellites.

Mainworld Data[edit]

(I-I) Iridina[edit]

(I-I) Iridina is designated the mainworld. It orbits Jem at a mean distance of 0.12 AU (17.9 million km), within the outer system. It has an orbital period of 24 days 4 hours: it is tidally locked to Jem. The axial tilt is 5 degrees. Iridina has a diameter of 4,710 km, a density of 3.43 g/cm³, and a surface gravity of 0.23 G. Tidal stresses generated by the gravitational pull of Jem cause regular geological activity. Its atmosphere is rated as Very Thin, with a mean surface pressure of 0.31 bar and a composition of 80% nitrogen (N2), 19% abiotic oxygen (O2), and 1% argon (Ar), water vapor (H2O), carbon dioxide (CO2), ozone (O3), neon (Ne) and other trace gases. Approximately 14% of the surface is covered in lakes of liquid water and sheets of water-ice. Mean surface temperature: -3°C. The climate is rated as Cold and is static, with no seasonal changes during the local year. The atmosphere is sluggish and minor weather systems driven by the star drift across the globe.

Mainworld Geography and Topography[edit]

Total surface area: 70 million km², Land surface area: 60 million km², Water surface area: 10 million km².

  • The oxygen in the atmosphere is abiotic in origin, produced by the photocatalytic reaction between UV energy radiating from the star and titanium dioxide (TiO2), which is found in surface minerals such as ilmenite.
  • Iridina is a Twilight Zone World.
  • The world experiences libration, which causes the star to move in the sky and periodically rise and fall above the horizon in the twilight region.

Native Lifeforms[edit]

Jem-Iridina System[edit]

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

Garnet Subsystem[edit]

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

History & Background (Dossier)[edit]

No information yet available.

World starport[edit]

Iridina 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]

Iridina possesses a Technology Level of TL–6.

World government[edit]

Iridina has a Civil Service Bureaucracy government.

  • It is a government by agencies employing individuals selected for their expertise.
  • The typical power source of this government is an Oligarchy.
  • The typical power structure of this government is a Unitary State.

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]

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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  1. "Jump Map API" and map location from