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Sable is an earth-like world orbiting a yellow g-type star in the Gemini region.  Once considered to be a primitive "backwater" world, the planet has grown immensely in both population and technology over the last century.  The planet is poised to become a leader in the Gemini Region.






Salacia was settled by various colonization groups from throughout the Mirach and bordering regions.  The numerous groups had vastly different ideologies, this caused violent disputes as they fought for control of the primary planet.  The conflicts dragged on for decades before finally ending in a worldwide peace treaty.






Salura is located at the outer edges of the Polaris Region.  The system's primary planet was settled by interstellar merchants, they were travelling from the Polaris Region to the Middle Regions.  The planet was setup a waypoint for those that were leaving the Inner Sphere for the Middle Regions.






The Samir system is an important trade crossing that connects the Betelgeuse Region to the Canopus Region. The majority simply travel through system between jump stations, and rarely venture inward to the system's planets.






Located in the heart of the Borealis Region, the Santerra System is an important trade and industrial world.  A large population has grown on the mountainous primary planet , with numerous major cities dotting the planet's coastlines.  The planet was originally established as a mining colony, plans were devised to export minerals from resource rich mountain ranges.






The primary planet of the binary Sariel system is made up of three continents.  A major world war vastly altered the planets population, which had lived there for over 1,000 years.  The planet was becoming industrialized and technology was growing at an accelerated rate, when a war broke out that would last nearly a century.







Located in the heart of the Borealis Region, the Santerra System is an important trade and industrial world.  A large population has grown on the mountainous primary planet , with numerous major cities dotting the planet's coastlines.  The planet was originally established as a mining colony, plans were devised to export minerals from resource rich mountain ranges.





Schemalian Prime

Shemalian Prime is the regional center of the Schemali Region. The system’s primary planet is a habitable, terrestrial world with a distinct set of rings, a rare world throughout the Inner Sphere.  The planet has a long history of human settlements dating back to its discovery by the Aurorians.






The primary planet of the Sefira System is a relatively young world whose land masses are covered in a complex network of mosses and algae.  Originally settled by a group of geologists looking to the study the world, its population has since grown at a steady pace over the years.






Seilus is a junction system that connects the Achernar Region with the Canopus Region.  The system has been home to a partially habitable moon that orbits an usually large, terrestrial world.  The icy moon has housed a small population.  The majority of the population consists of scientists and their families.





Semo Sancus

Semo Sancus C is a habitable terrestrial world smaller than Earth.  The planet is covered in 70% water.  The land areas are separated into 3 continents, the largest is the main continent the size of Asia centered along the equator, two smaller continents sit over both poles.  The world is known for a major nuclear attack which devastated large sections of the planet.







Semus is a five planet system with its primary world the second planet from the sun, a dry desert world with a large ocean.  The system lies in a strategic military area, making it one of the rare worlds where the United Worlds keeps a permanent military force.  Clashes between the United Worlds and the locals have occurred numerous times in the past, as they view the UW as an imperial force. 






Senecta has been located in an isolated part of the Canopus region.  Hidden under a dense nitrogen atmosphere, the system's primary planet has numerous enclosed cites that house the majority of the population, the rest live in orbital stations.






Senira's primary planet was once a quiet civilization that has grown into a power in the Mirach Region.  The planet was settled by religious extremists, looking to escape persecution on nearby Mirachian Prime.  The extremist grew a small society based around numerous colonies.






The Sentinel primary planet is a sprawling world that has been home to a large population.  Originally settled by refuges from Capricora, they were looking to escape the repression of that planet's government.  They escaped Capricora and settled on Sentinel, the nearest habitable world sitting only 7 light years away.






The primary planet is a warm tropical world orbiting the smaller  star of a binary system, with the larger being a red giant 165 AU away.  The red giant glows in night sky with the power of 150 full Earth Moons.






Seraphine was colonized by settlers who were travelling to the Pleiades Cluster.  The system's primary planet had a turbulent history, as the various colonization groups continuously fought over land and resources.  These violent conflicts plagued the planet, slowing its growth.






The highly populated system of Serendaria orbits a yellow g-class star in the Betelgeuse Region.  The planet sided with members of the Orion Alliance and created a safe haven for them to live.






Seristar is a tropical, water covered world located in an isolated part of the Gemini Region.  The planet land areas are located entirely in chains of islands scattered across the sprawling global ocean.  The volcanic island chains are home to the planet's entire population, most living in either resort cities or small fishing villages.






Sevenoaks's primary planet is a world covered in dense, coniferous forests, volcanic mountain ranges, and savannas.  There are only a few cities across the surface of the planet, the majority of the population reside in small towns and villages scattered throughout the woodlands.






Shalimar’s primary planet is one the worlds most similar to Earth in the Inner Sphere. With a similar size, composition, and temperature to Earth, there are also some significant differences. Most manly, the planet has a longer orbit, creating a lengthier year, with longer and more varied seasons.






When colonists first arrived in the system they named it Silvanus, after the Roman God of the woodlands.  The primary planet's land masses are covered in thick, coniferous forests. The planet's climate is generally cold and damp. Snow is common most of the year over large areas of the planet.






Silverstar is an enclosed city that orbits a large gas giant.  Silverstar City is a used as a base for extraction operations of anti-matter from within the gas giant's atmosphere.  The anti-matter is captured using high temperature superconductors, then sealed in electromagnetic fields in Silverstar City , it is then exported to other worlds.






The cloud covered world of Tiberius in the Sirius system.  The system was used heavily for mining during the early years of space exploration.






Soratia is a young, still forming planetary system consisting of a protoplanetary disk.  The system is still forming larger planets, it is currently filled with small protoplanets.  The protoplanetary disk is rich in resources and has been extensively mined.  The system's largest protoplanet Object #3476JH is orbited by numerous orbital cities.





Spica Colonies

The Spica Colonies are a series of moons orbiting a large gas giant located in the middle of the habitable zone.  The three major moons are undergoing the largest terraforming project in the Inner Sphere.  Atmosphere factories have been built on the surface of each moon, these factories pump large amounts gas into the atmosphere the help expand it.






Spiritwood's primary planet is a rainy, cool world whose land masses are covered in dense, temperate rainforests.  The surface's relatively flat geography mixed with the thick humid atmosphere, creates an environment where storms move across the land areas unimpeded.






The primary planet of the Spirus System is a habitable, terrestrial world covered in 60% water.  The planet's land areas are separated into 2 large continents, Oberlin is located in the western hemisphere, with Kelsey covering the eastern hemisphere.  The planet has grown a significant population into the billions.





St. Andrews

When the St. Andrews' primary planet was first discovered, many dismissed it as another water covered world lacking any land areas.  As early explorers surveyed the planet though, they discovered there were numerous small island chains spread across the surface.  Settlements were built on the sparse islands chains.





St. Lucas

St. Lucas has long had a quest to become a power not only in the Bellatrix Region but throughout the full Inner Sphere.  The system's primary planet has grown a population into the billions, while pursuing rapid technological growth, along with advancing wealth and prosperity for its people.






The Stargaia System sits inside the Sargas Region over 250 ly from Sol.  The primary planet is a warm, swampy world.  The planet is known for its large insects that infest the entire world, thriving in the oxygen rich enviroment.






Sylva is a junction system that is lies in a strategic location between 4 regions.  Most travellers have simply passed through the system as they traveled between regions, only visiting the system's recharging and jump stations.  The system has been home to an icy, primary planet that houses a few million people.






Orbiting close to the sun, Syrma B is a young volcanically active world with oceans of hot magma.  The insides of the planet are constantly turning and spitting up on the surface.  There are numerous mining colonies scattered on the cooler night side of the tidally locked world.





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