Difference between revisions of "Ducad (world)"

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|tertiary        = M1 V
 
|tertiary        = M1 V
 
|quaternary      = BD
 
|quaternary      = BD
 +
|PrimaryName    = Salvator
 +
|SecondaryName  = Claster
 +
|TertiaryName    = Herzog
 +
|QuaternaryName  = Lushan
 
|PrimaryNotes    =
 
|PrimaryNotes    =
 
|SecondaryNotes  = orbits primary at 81 AU
 
|SecondaryNotes  = orbits primary at 81 AU
 
|TertiaryNotes  = 2500 AU from primary
 
|TertiaryNotes  = 2500 AU from primary
|QuaternaryNotes = orbits tertiary at 21.1 AU
+
|QuaternaryNotes = L-Type Brown Dwarf / orbits tertiary at 21.1 AU
 
}}
 
}}
  

Revision as of 15:41, 16 February 2021

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

Ducad/Loran (Halcyon 1716)
Classic Era (1116)
D433687-6
StarportD Poor: No Construction, Minor Repair, Unrefined fuel
Size4 Small (6,400 km, 0.32g - 0.46g)
Atmosphere3 Vacuum (very thin)
Hydrographics3 Wet World 30%
Population6 Moderate (6 million)
Government8 Civil Service Bureaucracy
Law7 Moderate Law (no firearms)
Tech Level6 Pre-Stellar (nuclear)
See also UWP
System Details
Primary M0 V M6 VI M1 V BD
Planetoid Belts 1
Gas Giants 3

Ducad is a poor, non-agricultural and nonindustrial world.

  • It requires extensive imports of outside technology to maintain a modern, star-faring society.
  • It is unable to produce quality foodstuffs and must import them.
  • It has few prospects for economic development. Life here is drastically bleak.
  • It is a Non-Aligned world dominated by human sophonts located in the Loran Subsector of Halcyon Sector.


Astrography and Planetology

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

Ducad has four stars in the star system.
Salvator
Solitary M Type.jpg Type Category Mass (Sol) Temperature (K) Luminosity
M0 V Main Sequence (Dwarf) 0.57 3770 - 3850 0.13982
Unit Diameter Safe Distance Habitable Zone Jump Shadow M-Drive Limit
AU 0.0055 0.031 0.39 - 0.74 0.55 5.5
Orbit #  *  * 2 1 6
Remarks
Claster
Solitary M Type.jpg Type Category Mass (Sol) Temperature (K) Luminosity
M6 VI Main Sequence (Subdwarf) 0.0925 2000 - 2800 0.002
Unit Diameter Safe Distance Habitable Zone Jump Shadow M-Drive Limit
AU 0.00085 0.00323 0.03 - 0.05 0.085 0.85
Orbit #  *  *  *  * 2
Remarks orbits primary at 81 AU
Herzog
Solitary M Type.jpg Type Category Mass (Sol) Temperature (K) Luminosity
M1 V Main Sequence (Dwarf) 0.5 3620 - 3660 0.08839
Unit Diameter Safe Distance Habitable Zone Jump Shadow M-Drive Limit
AU 0.0047 0.0247 0.31 - 0.59 0.47 4.7
Orbit #  *  * 1 1 6
Remarks 2500 AU from primary
Lushan
Solitary BD Type.jpg Type Category Mass (Sol) Temperature (K) Luminosity
BD Brown Dwarf 0.0276 950 - 1250 0
Unit Diameter Safe Distance Habitable Zone Jump Shadow M-Drive Limit
AU 0.00092 0.00038 0 - 0.01 0.092 0.92
Orbit #  *  *  *  * 3
Remarks L-Type Brown Dwarf / orbits tertiary at 21.1 AU

System Data

The Ducad system consists of two binary star systems lying around 2500 AU apart, orbiting their barycenter once every 179,000 years. From an astrographical perspective the Salvator-Claster binary pair lies to coreward and the Herzog-Lushan binary pair lies to rimward.

Salvator-Ducad System

The primary is Salvator, an ordinary red main sequence star with a luminosity of 0.04 Sols, a mass of 0.489 Sols, and a diameter of 764,000 km. (I) Ducad orbits within the habitable zone and is designated the mainworld. (II) a small gas giant, (III) a trace atmosphere iceworld, (IV) an exotic atmosphere bigworld, and (V) a vacuum worldlet form the outer system. All of the world retain satellites.

Claster Subsystem

The companion is Claster, a red subdwarf star that orbits Salvator at 81 AU (orbital position (XI), 12.1 billion km) and has an orbital period of 1042 years. It has a luminosity of 0.0182 Sols, a mass of 0.144 Sols, and a diameter of 314,000 km. (I) a vacuum iceworld, (II) a trace atmosphere iceworld, (III) an exotic atmosphere radworld, and (IV) a vacuum iceworld form the outer system. The radworld retains a family of satellites.

Herzog-Lushan Subsystem

The far companion is Herzog, an ordinary red main sequence star located approximately 2500 AU from Salvator: the pair orbit one another once every 179,000 years. Herzog has a luminosity of 0.0334 Sols, a mass of 0.4574 Sols, and a diameter of 711,000 km. (I) a large gas giant orbits in the habitable zone: it retains two relatively hospitable satellites. (II) a small gas giant, (III) a trace atmosphere iceworld, and (IV) a vacuum iceworld form the outer system. Both gas giants retain families of satellites.

Lushan Secondary Subsystem

The distant companion is Lushan, a magenta coloured L-type brown dwarf with a diameter of 60,000 km. It orbits Herzog at a distance of 20.1 AU (orbital position (IX), 3.157 billion km) and has an orbital period of 133 years. (I) a dense icy planetoid belt, (II) a vacuum worldlet, and (III) a vacuum worldlet form the outer system. Neither world retains satellites.

Mainworld Data

(I) Ducad

(I) Ducad is designated the mainworld and orbits Salvator at a mean distance of 0.18 AU (26.9 million km), within the habitable zone. It has an orbital period of 39 days 21 hours: it is tidally locked to Salvator. The axial tilt is 4 degrees. Ducad has a diameter of 6,048 km, a density of 3.94 g/cm³, and a surface gravity of 0.34 G. The world is flexed by tidal forces and is geologically active. Its atmosphere is rated as Very Thin, with a mean surface pressure of 0.23 bar and a composition of 76% nitrogen, 23% oxygen, and 1% argon, carbon dioxide, neon and other trace gases. Approximately 26% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.4m. Mean surface temperature: -12°C. The atmosphere is sluggish and minor weather systems, driven by the star, crawl across the globe. The climate is static.

Mainworld Geography and Topography

Total surface area: 115 million km², Land surface area: 123 million km², Water surface area: 30 million km².

Native Lifeforms

Ducad has extensive native life, primarily consisting of minute multicellular organisms that can be found in most ecological niches. Their metabolic functions drive the process of atmospheric renewal. The most sophisticated organisms are huge mats of primitive photosynthetic flora.

History & Background (Dossier)

No information yet available.

World starport

Ducad has a Class D Starport, a poor quality installation which has few of the expected amenities. There is unrefined fuel for starships and a limited variety of ship provisions. There is no shipyard of any kind, but there may be parts and technical support for doing minor services and repair. Ports of this classification generally consist of only a downport, unless this is a trade port or system with an hostile environment mainworld.

World technology level

Ducad possesses a Technology Level of TL–6.

World government

Ducad is governed by a Civil Service Bureaucracy. The leadership of the government takes another form (democracy, dictatorship, oligarchy), but the bureaucracy leadership influences policy. The government leadership may select the bureaucracy leadership, but not its membership. Usually the governmental leadership is divided, or incapable of setting policy, and the bureaucracy provides a stabilizing influence. This ruling bureaucracy may be the full government bureaucractic apparatus or a section with limited jurisdiction but considerable influence, like the military.

World military

No information yet available.

World economy

No information yet available.

Trade data

No information yet available.

World demographics

No information yet available.

World culture

No information yet available.

Historical data

World timeline

No information yet available.

UWP listing

No information yet available.

References & Contributors / Sources

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