Janna (world)

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

Janna/Orret (Far Home 2324)
Classic Era (1115)
StarportC Routine: No Construction, Major Repair, Unrefined fuel
Size4 Small (6,400 km, 0.32g - 0.46g)
Atmosphere3 Vacuum (very thin)
Hydrographics1 Dry World 10%
Population3 Low (3 thousand)
Government2 Participating Democracy
Law2 Low Law (no energy weapons)
Tech Level8 Pre-Stellar (superconductors)
See also UWP
System Details
Primary G8 IV
Planetoid Belts 0
Gas Giants 0

Janna 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]

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


Primary Giant 2.18 4300 - 5300 4.762
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.02885 0.181 1.73 - 2.83 2.885 28.85
Orbit #  * 0 5 5 8

System Data[edit]

Egant-Janna System[edit]

The primary is Egant, a yellow giant star. It has a luminosity of 4.76 Sols, a mass of 2.18 Sols, and a diameter of 4.314 million km. The inner system consists of (II) an exotic atmosphere radworld, (III) a corrosive atmosphere inferno world, and (IV) a very thin atmosphere hospitable world – orbital position (I) is empty. (V) Janna orbits within the habitable zone and is designated the mainworld. (VII) an exotic atmosphere bigworld forms the outer system – orbital position (VI) is empty. Many of the worlds retain satellites.

Mainworld Data[edit]

(V) Janna[edit]

(V) Janna is designated the mainworld. It orbits Egant at a mean distance of 1.47 AU (219.9 million km), within the habitable zone. It has an orbital period of 1 year 76 days and a rotation period of 43 hours. The axial tilt is 16 degrees. Janna has a diameter of 5,877 km, a density of 4.33 g/cm³, and a surface gravity of 0.36 G. The world is geologically active. Its atmosphere is rated as Very Thin, with a mean surface pressure of 0.34 bar and a composition of 79% nitrogen (N2), 19% oxygen (O2), 1% argon (Ar), and 1% xenon (Xe), water vapor (H2O), carbon dioxide (CO2), neon (Ne) and other trace gases. Approximately 12% of the surface is covered in lakes and seas of liquid water: average tidal ranges exceed 0.1m. Mean surface temperature: 48°C. The climate is rated as Hot and experiences minor seasonal changes during the local year. The atmosphere is slow and weak weather systems driven by the star drift across the globe.

Mainworld Geography and Topography[edit]

Total surface area: 109 million km², Land surface area: 96 million km², Water surface area: 13 million km².

Native Lifeforms[edit]

Egant-Janna System[edit]

The hot marginally hospitable world lying in orbital position (IV) (within the H– region of the inner 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 moisture. Their metabolic functions maintain the process of atmospheric renewal.

Janna, the mainworld, has extensive native life, consisting of microscopic organisms, stromatolite-parallels and primitive flora that can be found in almost every ecological niche. Their metabolic functions drive 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]

Janna has a Class C Starport, an average quality installation which includes amenities including unrefined fuel for starships, some brokerage services for passengers and cargo, and a variety of ship provisions. There is a shipyard capable of doing maintenance and other kinds of repair. Ports of this classification generally have only a downport, unless this is a trade port or system with an hostile environment mainworld.

World technology level[edit]

Janna possesses a Technology Level of TL–8.

  • Common Communication technologies for this TL include: Fiber optics, improved telephones, and satellite communication and data networks.
  • Common Power Generation technologies for this TL include: Improved geothermal and improved batteries.
  • Common Transportation technologies for this TL include:
    • Land: Advanced automobiles.
    • Water: Triphibians and early artificial gills.
    • Air: Improved helicopters and hypersonic jets.
    • Space: Space shuttles, early space stations, and improved interplanetary spacecraft (System Craft).

World government[edit]

Janna is governed by a Participatory Democracy where eligible voters determine laws and policy. What determines an eligible voter varies. There may be smaller councils or regional bodies to write the policies voted on. Leadership of the government and all members of the bureaucracy are determined by voting population.

World military[edit]

No information yet available.

World Economy[edit]

  • Homogeneity: 7 (Discordant)
  • Acceptance: 1 (Extremely xenophobic)
  • Strangeness: 4 (Somewhat distinct)
  • Symbols: 9 (Somewhat abstract)

Trade Data[edit]

No information yet available.

World Demographics[edit]

Population: 3,300

World Culture[edit]

  • Resources: 7 (Few)
  • Labor: 2 (Hundreds)
  • Infrastructure: 1 (Extremely limited)
  • Efficiency: +0 (Normal)

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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