Hawking Eta is a Cluster in Mass Effect 2. Hawking Eta features 5 Systems, 15 Planets, and 1 Satellite. Hawking Eta can be unlocked after completing the Stop the Collectors: Investigate Collector Ship Mission. In Mass Effect 2, the galaxy is divided into Clusters, Systems, and Planets. Inside each Cluster you can find a different number of Systems, and within each System you will find mainly Planets, but also Satellites. Below you can find all the Systems and Planets within Hawking Eta.
When you acquire the Firewalker Pack DLC, completing the Project Firewalker: Rosalie Lost Mission before the Stop the Collectors: Investigate Collector Ship grants you access to the Thome System. After completing this Stop the Collectors: Investigate Collector Ship, Chandrasekhar, Century, Schwarzschild, and Verr Systems are unlocked too.
All Systems in Hawking Eta