The system this takes place in is called Sigma
There are seven planets, which are listed by their increasing distance from the sun:
Dravidia - Terrestrial. Warm planet undergoing terraforming. No moon.
Ashoka - Terrestrial. Earth-like and shares an orbit with Nirvana. One moon: ????
Nirvana - Terresterial, Earth-like and shares an orbit with Ashoka. Two moons: ????
Cimbria- Gas Giant with inhabited moon: Sjaell. Other moons include: Wismar, Graesmoene, Bornholm.
Oregon - Gas Giant.
Geronimo - Gas Giant.
Crisilis - Terrestrial. No atmosphere. Small colonies.