This star is 12.8 light-years from Sol and has the second highest relative motion to Sol of all the stars in the human sphere. Kapteyn’s is estimated to be over ten billion years old and was formed in a dwarf galaxy outside the Milky Way. Unlike most stars it has a polar orbit around the galactic core and also orbits the galaxy retrograde. It spends most of its time above or below the disk of the galaxy.
Because of its age, Kapteyn’s has fewer heavy elements and has a more bluish tint than most red dwarfs. It also has 32% of Sol’s mass and 7% of its luminosity.
Kapteyn’s is orbited by two major planets and seven notable dwarf worlds. It has also picked up hundreds of small worlds and asteroids during its journeys through the cosmos.
Its planets (in nominal order) are:
Also known as: GJ 1061, Estrella de la Muerte.
Named “Estrella de la Muerte” by the crew of the Intrepid as it passed through the system, this star is a small red dwarf 12 light-years from Sol. With a diameter not much larger than Jupiter’s, it has roughly 11% the mass of Sol and 1% its luminosity. No significant planetary objects exist in the system, which only features a few asteroid belts.
Also known as: Sirius B
The second star in the Sirius system, formerly known as Sirius B. This white-dwarf remnant has a strong magnetic shield which protects worlds and habitats there from the harsh radiation of Sirius A.
Also known as: Mars 1, M1R, MIR
The first planetary ring saw its construction begin in the year 2215 and through a massive effort was completed in 2391. The ring is just over 1600 kilometers wide and wraps around Mars at the planet’s geosynchronous orbital point making it 128,400 kilometers long.
The ring is not flat like a natural ring (such as Saturn’s) but faces the planet. It does not orbit at a speed to match the surface of Mars, but rotates at a slower speed to provide exactly 1g of gravity on the inside surface. Walls over 100 kilometers high line the inside of the ring and hold in atmosphere. The total surface area of the ring is 205 million kilometers. This is half the surface area of Earth and 72% more area than Earth’s landmass. Considering that M1R has hundreds of levels it contains more than 100 times the surface area of planet Earth.
The completion of M1R definitively proved that mankind’s future home was in space and not on the surface of worlds. In the year 4123 the population of the M1R had reached over seven hundred billion people.
Also known as: MCEE
The Mars Central Elevator Exchange is a secondary orbital ring around the planet Mars which connects all of the outer habitats and shipyards to the Mars 1 Ring (M1R). Because of the need to keep gravity under 1g, all habitats and shipyards connected to the M1R must orbit Mars at a slower speed than the main ring. As a result they must connect to it via elevators which can move along the surface of the MCEE. Maglev elevators can then travel from locations such as the Mars Outer Shipyards to the M1R without requiring passengers or cargo to transfer to other transports.
After the MCEE was constructed, which made it possible to dock at a station further out from Mars and have materials transported down the gravity well, the Mars Inner Shipyards were constructed. Because high-tech manufacturing was occurring on the M1R as well, it became a better location for shipbuilding than the MOS and through the latter half of the fourth millennia and beginning of the fifth it overtook the MOS as InnerSol’s premier shipyard.
Also known as: MOS (pronounced "moss")
This shipyard was once the premier shipyard in all of the Sol system. Built in 3229, the shipyard’s main structure is over 1000 kilometers in length with thousands of cubic kilometers of equipment and detached service yards surrounding it. The shipyard’s pre-eminence faded as the conditions which made the MIS more economical improved. In 4123 it was still one of the busiest shipyards in the Sol system, but until it won the Intrepid’s contract it had not done a high-profile build in decades.
Known on charts as 82 Eridani, this stellar system was terraformed by the FGT in the late forty-first and early forty-second centuries. The stellar primary is a Sol-like star with two Earth-like planets in orbit.
The region of space between the main asteroid belt and the inside of the main Kuiper belt—though this has shifted as political entities shift.
The seventh planet in the Kapteyn’s star system, Perseus is a cold, ice-world with an average orbital distance of 7AU from its host star. The world is small, but has a higher than average density for the system. Surface gravity is 0.36g.
Perseus is known as the Gamma site and is where Earnest’s secret picotech research base is located.