Hyacinth is a Core Systems-aligned planet in the St. Helens System of Phoenix Sector.

Planetary Data

Geographic Data

Hyacinth is a small, moist planet with a predominantly silty surface and a breathable nitrogen-oxygen atmosphere with an average air pressure of 0.8atm. The planet has a diameter of approximately 9,700 kilometers and a lower-than-Earth gravity of 0.75g. About 65% of the surface is water.

Hyacinth develops frost and ice on certain landforms twice during the course of its orbit around Saint Helens, and the temperature drops enough to freeze shallow bodies of water. The average temperature during the warm months is about 20˚.


About 8 billion people live on Hyacinth, mostly in huge sprawling towers. The planet has an enormous amount of beaches for its surface area, but uncooperative weather and over-pollution make most of them unattractive. Most people stay inside and take advantage of the more capable CoreNet system (see Economics, below).


Hyacinth's position in a system with six gas giants and a relatively "quiet" star have led to it becoming an important conduit along the CoreNet route. A massive jump wave transmitter orbits the planet, providing incidental access that gives the locals more CoreNet feeds than anywhere else in human space (except perhaps Earth). Hyacinth's economy revolves around the transmitter - a fact that has given rise to some of the most advanced jump wave research in the Republic.


Hyacinth's citizens enjoy the voice their opinions directly, with majority opinion dictating policy. This serves to keep elected officials working hard, but also means that the government turns itself inside out every few years, as bad decisions (or bad luck) irritate the short-sighted population.

Travellers' Information


There are no major advisories for travellers. Traffic to and from the surface is sometimes delayed due to weather systems.

Travellers' Resources

There is no TAS on Hyacinth.


Hyacinth is within range of the following systems (for a ship equipped with a Jump-2 enabling drive):

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