Cygnus system

The Cygnus System is a Human-controlled system in the Outer Colonies that has not been affected by the Insurrection.

Within its system are two Human colonized worlds. One of which is New Jerusalem, the possible birthplace of Jilan al-Cygni.

Cygnus may be part of the Cygnus constellation.

In real-world astronomy, there are only two stars within the Cygnus constellation within UNSC territory, Epsilon Cygni, which is 72.1 lightyears from Earth, and 16 Cygni, which is, at 70 lightyears from Earth, much closer. It is not known which of two is inhabited, or indeed whether both are.