Kumura (world)

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

Kumura/Sithula (Divide 2908)
Classic Era (1115)
Starport? Error in Starport Decode
Size6 Medium (9,600 km, 0.60g - 0.81g)
AtmosphereA Exotic
Hydrographics2 Dry World 20%
Population? Error in Population Decode
Government? Error in Government Decode
Law? Error in Law Decode
Tech Level? Error in Tech Decode
See also UWP
System Details
Primary A2 V M7 VI
Planetoid Belts 3
Gas Giants 1
Jump map from Travellermap.com [1]

Kumura is a fluidic hellworld of sophonts struggling to survive in a inhospitable environment.

  • A fluid world has an oceanic geography of a liquid other than water such as ammonia, methane, hydrocarbons, or other exotic liquids.
  • Hellworlds often offer daily, and sometimes hourly, life-threatening situations to their inhabitants.
  • It is an unclaimed Non-Aligned world located in the Sithula Subsector of Divide Sector.

Astrography and Planetology[edit]

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

Binary Solar System[edit]

Kumura Binary Star System
Star Name Hierarchy Color Classification Remarks
Kumura Primary Primary White A2 V
Kumura Companion Secondary Red M7 VI

System Data[edit]

Kumura System[edit]

The primary is an unnamed hot blue-white main sequence star. It has a luminosity of 60.4 Sols, a mass of 2.94 Sols, and a diameter of 3.673 million km. The inner system consists of (II) a trace atmosphere inner world, (IV) a trace atmosphere worldlet, (V) a corrosive atmosphere inferno world, (VI) an exotic atmosphere radworld, and (VII) a corrosive atmosphere inferno world – orbital positions (I) and (III) are empty. (VIII) Kumura orbits within the habitable zone and is designated the mainworld. (IX-I) a dense stony planetoid belt, (IX-II) a ringed small gas giant, and (X) a small ice giant form the outer system. Many of the worlds retain satellites.

Red Subdwarf Subsystem[edit]

The companion is an unnamed dim red subdwarf star that lies approximately 2,700 from the primary. It has a luminosity of 0.00103 Sols, a mass of 0.081 Sols, and a diameter of 109,000 km. (I) a vacuum worldlet, (II) an exotic atmosphere bigworld, and (IV) a vacuum iceworld form the outer system – orbital position (III) is empty. The bigworld retains satellites.

Mainworld Data[edit]

(VIII) Kumura[edit]

(VIII) Kumura is designated the mainworld. It orbits the primary at a mean distance of 9.7 AU (1.45 billion km), within the habitable zone. It has an orbital period of 17 years 226 days and a rotation period of 35 hours. The axial tilt is 43 degrees. Kumura has a diameter of 10,099 km, a density of 6.74 g/cm³, and a surface gravity of 0.97 G. The world is geologically active. Its atmosphere is rated as Exotic, with a mean surface pressure of 0.74 bar and a composition of 91% nitrogen (N2), 6% carbon dioxide (CO2), 2% abiotic oxygen (O2), and 1% argon (Ar), water vapor (H2O), neon (Ne) and other trace gases. Approximately 21% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.25m. Mean surface temperature: 53°C. The atmosphere is very active and violent weather systems driven by the star and the seas scour the globe. The climate is seasonal.


Kumura retains a single natural satellite, an ice-capped vacuum worldlet named Jonku:

(VIIIa) Jonku (known UWP ?201???-?, orbiting at 45 Diameters/455,000 km)

Native Lifeforms[edit]

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

History & Background (Dossier)[edit]

The Kumura system has been studied by the Local Astrographical Survey Project, a part of the Astronomy Department of the University of Selasia.

World starport[edit]

Kumura has no listed Starport data.

World technology level[edit]

Kumura has no listed Technology Level data.

World government[edit]

Kumura has no listed Government data.

World military[edit]

No information yet available.

World economy[edit]

No information yet available.

Trade data[edit]

No information yet available.

World demographics[edit]

Kumura has no listed Population data.

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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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