OK, the star at the center of our system, a Class III M5 star (correct me if any of that is wrong) formally called DM-58, codename "Caelus." A central trading hub of the Domain of man, it had an amazing three habitable planets and five other, large planets, and countless moons (planets and moons will be named according to starfarer lore, for now. e.g. "Caelus I" and "Caelus I-A"
Two large planets will be gas giants, near the outer edge of the system. One will have 2 moons. The other will have an asteriod belt to go with it, but no moon.
The other large planet will be a terrestrial planet, closer to the star but not enough to sustain life. Turned into an ice pop because of a lack of heat.
The three habitable planets will be closer to the star, all in seperate orbits. One will have a moon, the other two will not. They are roughly the same size, though one moonless planet will be ever so slightly larger. Each of these planets will have a faction to their name, hostile or not to eachother. Around the habitable planet will the moon, there will be an orbital station will the same location and orbit as the moon, to represent a "moon base".
An asteriod belt will seperate the gas giants from the terrestrial planets. In the asteriod belt, there is an abandoned storage station, once used to store ore from the asteriod mines but long since forgotten.