At least 3
Within its system are two human-colonized worlds, one of which is Cygnus, Chyler Silva's birthplace. The other human colony is New Jerusalem, the home of ONI operative Jilan al-Cygni. They are the second and third planets in orbit around the star Cygnus, respectively.
List of appearances
- Halo: Contact Harvest (First mentioned)
- Halo: Evolutions - Essential Tales of the Halo Universe
- Dirt (First appearance)
- Halo: Reach (Mentioned only)
- Halo 4: Forward Unto Dawn (Mentioned only)