Lydia (world)

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Lydia/Glisten (Spinward Marches 1733)
Milieu 1116
StarportE Frontier - no facilities
Size3 Small (4,800 km, 0.24g - 0.34g)
Atmosphere1 Vacuum (trace)
Hydrographics0 Desert World 0%
Population4 Moderate (90 thousand)
Government3 Self-Perpetuating Oligarchy
Law0 No Law
Tech Level7 Pre-Stellar (electronics)
See also UWP
System Details
Primary M4 III M0 V
Worlds 11
Gas Giants 2
Planetoid Belts 0
Cultural Details
Government Self-perpetuating oligarchy
Law Level No law
Cultural Extension 1112
Army Size (BEs) 0
Economic Details
Technology Level 7
Economic Extension
Labor3Low (9 thousand)
Infrastructure1 Extremely limited
Efficiency-5Extremely poor
Importance Extension -3
Resource Units 9
GWP (BCr) 0
World Trade Number 2.5
Trade Volume (MCr/year) 0
Starport Details
Classification Class-E
Port Size 0
Building Capacity (Tons) 0
Port employees 0
Port passengers (annual) 0

Lydia has a population between 10,000 and 10 million sophonts, lacking the industrial base to be completely self-supporting. It is a member of Third Imperium in the Glisten Subsector of Spinward Marches Sector and in the Domain of Deneb. Lydia, as a member world of the Third Imperium, holds the estate of an Imperial knight, a member of the Imperial Nobility charged with overseeing the world.

Astrography & Planetology[edit]

Lydia is a member of the Spinward Main. Lydia lies on the Collace Arm

Binary Solar System[edit]

Lydia Binary Star System
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)
Lydia primary


Primary Giant 7.18 2100 - 3000 1918
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 1.81446 3.63253 34.82 - 56.75 181.446 1814.46
Orbit # 4 5 9 11 14
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)
Lydia companion

M0 V

Secondary Main Sequence 0.489 2800 - 3600 0.04
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.00511 0.01659 0.16 - 0.26 0.511 5.11
Orbit #  *  * 0 1 6

IISS GURPS Astrographics Survey[edit]

1733 Lydia (Imperial)

Starport: Class I.

Diameter: 963 miles (1,500 km).
Atmosphere: None.
Hydrographics: None.
Climate: Cold.
Population: 9,300.
Government: Dictatorship.
Control Level: 0.
Tech Level: 6.
World Trade Number: 2.5.

Native Lifeforms[edit]

The largest living thing on the surface is the Akenplant, a cactus like growth surviving on the surface. The roots of the Akenplant can split rocks to enable the plant to survive in unlikely places, and its byproducts are exploited by the locals. [2]

History & Background (Dossier)[edit]

The whole population of Lydia live in a single enclave, carved out of a natural cavern system. The Lydians are known for creating archaic yet surprisingly reliable life support systems at TL–6.[2] These machines are barely sufficient to maintain the colony's trace atmosphere, but may utilize divergent technology, like one may expect from a culture surviving in such a niche.

Formerly a mining colony founded to exploit massive quantities of silver, it has been on the decline since the silver gave out around 1020. ConTech closed the starport in 1035, and most of the population emigrated. The remainder are expert garbage pickers--a fair amount of useful salvage at TL–12 remains from the mining operation, enough that free traders occasionally call to pick up the junk.


Lydia is on the very bottom end of a "Population 4" planet, having just barely 10,000 sophonts.

References & Contributors (Sources)[edit]

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 Far Future Enterprises or by permission of the author. The page history lists all of the contributions.