Mesiter (world)

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

Mesiter/Lordan (Divide 2202)
Classic Era (1115)
Starport? Error in Starport Decode
Size2 Small (3,200 km, 0.10g - 0.17g)
Atmosphere1 Vacuum (trace)
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 M1 V
Planetoid Belts 0
Gas Giants 4

Mesiter is an icy, non-agricultural world, whose surface is ice-capped and with nearly all of its water frozen.

Astrography and Planetology[edit]

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

Monostellar System[edit]

Mesiter 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

System Data[edit]

Mesiter System[edit]

The primary is an unnamed ordinary red main sequence star. It has a luminosity of 0.0334 Sols, a mass of 0.4574 Sols, and a diameter of 711,000 km. (I) an exotic atmosphere radworld orbits within the habitable zone. (II) Chepon, a ringed large gas giant: (IIc) Mesiter is its third moon and is designated the mainworld, (III) a large gas giant, (IV-I) a small gas giant, and (IV-II) a small ice giant form the outer system. Many of the worlds retain satellites.

(II) Chepon[edit]

(II) Chepon is a ringed large gas giant that orbits the primary at a mean distance of 0.41 AU (61.3 million km), within the H+ region of the outer system, and has an orbital period of 141 days 19 hours. It has a diameter of 116,000 km and an atmosphere consisting of 90% hydrogen (H2), 10% helium (He), and less than 1% methane (CH4), carbon monoxide (CO), ammonia (NH3), water vapor (H2O) and other trace gases. It is a banded brown-tan color. A pair of huge red-brown storms, with diameters in excess of 30,000 km, lie on the equator of the world. It retains a family of four major satellites.


Chepon retains a narrow dark ring system and four major satellites:

(IIr) Ring System (UWP YR00000-0, extending to 1 Diameter/115,000 km)
(IIa) Salut (UWP ?200???-?, orbiting at 4 Diameters/465,000 km)
(IIb) Lem (UWP ?4A1???-?, orbiting at 5 Diameters/580,000 km)
(IIc) Mesiter (designated the mainworld, orbiting at 10 Diameters/1.15 million km)
(IId) Varan (UWP ?100???-?, orbiting at 13 Diameters/1.51 million km)

Mainworld Data[edit]

(IIc) Mesiter[edit]

(IIc) Mesiter is the third of the four major moons of (II) Chepon and is designated the mainworld. It orbits its parent world at a mean distance of 10 diameters (1.15 million km), with an orbital period of 101 days 9 hours: it is tidally locked to Chepon. The axial tilt is 0 degrees relative to Chepon. Mesiter has a diameter of 2,848 km, a density of 4.36 g/cm³ and a surface gravity of 0.18 G. Tidal stresses generated by the gravitational pull of Chepon cause regular geological activity. The atmosphere is rated as Trace, with a mean surface pressure of 0.008 bar and a composition of 95% nitrogen (N2), 4% carbon dioxide (CO2), and 1% argon (Ar), ammonia (NH3), methane (CH4), water vapor (H2O) and other trace gases. Around 18% of the surface is covered in sheets of water-ice. Mean surface temperature: -65°C.

Mainworld Geography and Topography[edit]

Total surface area: 25.5 million km², Land surface area: 20.9 million km², Ice surface area: 4.6 million km².

Native Lifeforms[edit]

Mesiter System[edit]

The warm exotic atmosphere radworld lying in orbital position (I) (within the habitable zone) has extensive, bizarre native life, consisting of complex radiation-tolerant organisms that thrive in the harsh conditions. Their metabolic functions drive the process of atmospheric renewal.

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

History & Background (Dossier)[edit]

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

World starport[edit]

Mesiter has no listed Starport data.

World technology level[edit]

Mesiter has no listed Technology Level data.

World government[edit]

Mesiter 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]

Mesiter 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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