Sirius (world)

Sirius/Dingir (Solomani Rim 1629)
Classic Era (1116)	A000769-E Starport A Excellent: Starship Construction, Overhaul, Refined fuel Size 0 Asteroid/Planetoid Belt Atmosphere 0 Vacuum Hydrographics 0 Desert World 0% Population 7 Moderate (20 million) Government 6 Captive Government/Colony Law 9 High Law (no weapons out of home) Tech Level E High Stellar (anti-grav cities)
See also	UWP
System Details
Primary	A1 V D
Planetoid Belts	1
Gas Giants	0

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Jump map from Travellermap.com

Sirius is a ring of many small worldlets (planetoids AKA an "asteroid belt"), not capable of retaining an atmosphere or water, and both non-agricultural and preindustrial in nature.

• These worldlets warrant 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.
• The worldlets are, for the most part, unable to produce quality foodstuffs and must import them.
• These worldlets are working towards being an industrial world but lack an adequate workforce to do so.
• This is a "high technology" world with technology achievements at, near, or over technology standards for Charted Space.
• This world toils under the control of a military government with conditions reflecting that situation including curtailed civil rights and limited freedoms.
• This is a "Puzzle" world designated as an Amber Zone. Caution is advised since the world has an environment, laws, customs, life forms, or other conditions that are not well understood and might be a danger to a visitor.
• It is a member of the Third Imperium in the Dingir Subsector of Solomani Rim Sector in the Domain of Sol.

Description (Astrography & Planetology)

The Sirius system "mainworld" is an asteroid belt.

• The Sirius system is a binary star system consisting of a blue-white A class star and a nearby blue-white degenerate ("white dwarf") companion orbiting about 20 AU apart. Neither has planet or asteroid companions. The belt at Sirius is actually made up of dozens of artificial satellites and habitats, including ice-rich planetoids moved from other nearby systems. These are intended to fill what was once referred to as the Sirius Gap.

Binary Solar System

Sirius Binary Star System

Sirius A
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	A1 V	Main Sequence		2.05	8800 - 9300	12.33498
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.0199	0.2913	3.33 - 5.78	1.99	19.9
	Orbit #	*	0	6	4	8
	Remarks		Alpha Canis Majoris A
Sirius B
	Type	Category		Mass (Sol)	Temperature (K)	Luminosity
	DA	White Dwarf		0.36	14000 - 14000	0.005
	Unit	Diameter	Safe Distance	Habitable Zone	Jump Shadow	M-Drive Limit
	AU	0.00016	0.00587	0.06 - 0.09	0.016	0.16
	Orbit #	*	*	*	*	0
	Remarks		Alpha Canis Majoris B

IISS GURPS Astrographics Survey

1629 Sirius (Imperial) - Amber Zone

Starport: Class V.

Diameter: Asteroids. Gravity: N/A.
Atmosphere: None.
Hydrographics: None.
Climate: Torrid.
Population: 24 million.
Government: Military Rule.
Control Level: 6.
Tech Level: 11.
World Trade Number: 5.

System Data

No information yet available.

System Importance (Ix)

No information yet available.

Mainworld Data

No information yet available.

Mainworld Size (S)

This world is an Asterioid Belt or Planetoid Belt consisting of a few very large objects with diameters of hundreds of kilometers, thousands of bodies of a few kilometers in diameter, and millions of smaller objects. Asteroid Belt is used when the belt is the mainworld of a system. Planetoid Belt refers to any non-mainworld belt within a system.

Mainworld Atmosphere (A)

This world has a pressure of less than 0.001 atmospheres which requires the use of a Vacc Suit. TL–8 or more advanced survival gear is required to settle this world.

Mainworld Hydrosphere (H)

This world has no free-standing water or ice on the surface. Wilderness refueling isn't possible on this world. Water for the inhabitants needs to be imported and extensively recycled. These worlds are classified Desert World or a Hell World depending on their atmosphere.

Mainworld Geography & Topography

No information yet available.

Mainworld Map

No information yet available.

Native Lifeforms

No information yet available.

History & Background (Dossier)

Sirius is an asteroid belt located in Dingir Subsector of the Solomani Rim. The system is a member of the Imperium. Sirius is under military rule and has been issued an Amber Zone travel advisory.

• The position of Sirius makes it important as a way station for commercial traffic. Commercial activity on Sirius is entirely devoted to starship operations.

Imperial Landed Nobility (N)

Sirius, as a member world of the Third Imperium, holds the estates of two members of the Imperial Nobility, who are charged with overseeing the world.

• It holds the estate of an Imperial knight.
• It holds the fiefdom of an Imperial marquis.

World Starport (Sp)

Sirius has a Class A Starport, an excellent quality installation which includes all the expected amenities including refined fuel for starships, brokerage services for passengers and cargo, and a variety of ship provisions. There is a shipyard capable of doing annual maintenance, overhauls and other kinds of repair, and construction of both starships and non-starships. Most ports of this classification have both a Highport and a Downport.

World Population (P)

This world has a population of 10,000,000 sophonts (tens of millions).

World Demographics

Humaniti, population 95%

• Other, population 5%

World Government (G)

This world has a Captive Government or Colony. The world is ruled by an external government, there is no self-rule. A colony or conquered area. The local government is an oligarchy appointed by, and answerable only to, the external government.

World Law Level (L)

This world has a high law level with laws covering many areas of interactions of people, corporations, and the government. A few worlds with this law level may be Amber Zones. Any interaction with the judicial system requires an Advocate trained in the local legal system. Law enforcement is present almost everywhere, either as people or via technology. Legal proceedings can take weeks to months to resolve and involve a dozen or more people. All objects specifically manufactured as weapons are typically regulated or prohibited (outside private residences or visiting starships).

World Technology Level (TL)

This world possesses a Technology Level of TL–14 or TL-E in Hexadecimal Notation.

• Common Communication technologies for this TL include: Early meson communicators.
• Common Power Generation technologies for this TL include: Miniature super-batteries, early collectors, and advanced fusion plants.
• Common Transportation technologies for this TL include:
  • Land, Water & Air: Personal G-Tubes and advanced gravcraft.
  • Space: Advanced interplanetary spacecraft (System Craft).
  • FTL: Jump Drive-5.

World Military

No information yet available.

World Economy (Ex)

No information yet available.

Trade Data

Trade Classifications for this world:

• No information yet available.

Trade Lines with other worlds:

• No information yet available.

Urbanization

No information yet available.

World Infrastructure

This world possesses TBD infrastructure.

World Culture (Cx)

No information yet available.

World Language/s

• Anglic
• Vilani (language)

Historical Data

No information yet available.

World Timeline

No information yet available.

UWP Listing

No information yet available.

References

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 list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.

• John Harshman. The Solomani Rim (Game Designers Workshop, 1982), 28.
• Classic Traveller Solomani (Alien Module)
• Jon F. Zeigler. Rim of Fire (Steve Jackson Games, 2000), 105.
• David L. Pulver. Solomani Rim (Mongoose Publishing, 2012), 86.
• Martin Dougherty. Solomani Front (Mongoose Publishing, 2021), 187.