Sedd (world)

From Traveller Wiki - Science-Fiction Adventure in the Far future
Jump to: navigation, search

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

Sedd/Veesene (Halcyon 1926)
Classic Era (1115)
StarportC Routine: No Construction, Major Repair, Unrefined fuel
Size1 Small (1,600 km, 0.05g - 0.09g)
Atmosphere0 Vacuum
Hydrographics0 Desert World 0%
Population5 Moderate (300 thousand)
GovernmentA Charismatic Dictator
LawB Extreme Law (control of movement)
Tech LevelA Early Stellar (jump drive)
See also UWP
System Details
Primary M9 VI
Planetoid Belts 0
Gas Giants 1
Jump map from [1]

Sedd is a nonindustrial vacuum world, which warrants hazardous environment precautions.

  • Life in a vacuum requires great discipline. After all, it only takes one forgotten seal on a vacuum suit to spell death. Those who survive tend to be very methodically-minded and attentive to small detail.
  • 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.
  • It is a Non-Aligned world dominated by human sophonts located in the Veesene Subsector of Halcyon Sector.

Astrography and Planetology[edit]

No information yet available.

Monostellar System[edit]

Sedd Monostellar System
Star Name Hierarchy Color Classification Remarks
Sedd Primary Red M9 VI

System Data[edit]

Arvan-Sedd System[edit]

The primary is Arvan, a dim red subdwarf star. It has a luminosity of 0.00006 Sols, a mass of 0.058 Sols, and a diameter of 73,700 km. (I) a very thin atmosphere radworld, (II) a vacuum iceworld, (III) Julius, an exotic atmosphere stormmworld: (IIIa) Sedd is its only satellite and is designated the mainworld, and (IV) a thin atmosphere radworld. The two outer worlds retain satellites.

(III) Julius[edit]

(III) Julius orbits primary at a mean distance of 0.73 AU (109.2 million km), within the outer system. It has an orbital period of 2 years 216 days and a rotation period of 27.5 hours. The axial tilt is 16 degrees. Julius has a diameter of 6,516 km, a density of 4.63 g/cm³, and a surface gravity of 0.43 G. The world is geologically active. Its atmosphere is rated as Exotic, with a mean surface pressure of 2.23 bar and a composition of 96% nitrogen, 3% carbon dioxide, and 1% argon, water vapour, neon and other trace gases. It has no hydrosphere. Mean surface temperature: 53°C. The atmosphere is very active and violent weather systems driven by the star and the seas sweep across the globe. The climate is seasonal.

Mainworld Data[edit]

(IIIa) Sedd[edit]

(IIIa) Sedd is the only moon of (III) Julius and is designated the mainworld. It orbits its parent world at a mean distance of 45 diameters (293,000 km), with an orbital period of 26 days 19 hours: it is tidally locked to Julius. It has an axial tilt of 4 degrees. Sedd has a diameter of 1,715 km, a density of 4.23 g/cm³ and a surface gravity of 0.11 G. Tidal stresses caused by the gravitational pull of Julius causes occasional geological activity. It retains an atmosphere rated as Vacuum. It has no hydrosphere. Mean surface temperature: -72°C.

Mainworld geography and topography[edit]

Total surface area: 9.3 million km².

Native lifeforms[edit]

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

History & Background (Dossier)[edit]

No information yet available.

World starport[edit]

Sedd 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]

Sedd possesses a Technology Level of TL–10 or TL-A in Hexadecimal Notation.

World government[edit]


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]

62px-Information icon.svg.png This article is missing content for one or more detailed sections. Additional details are required to complete the article. You can help the Traveller Wiki by expanding it.

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