Note: Unlocks after you complete the quest "Getting to Know the Nexus".
At first glance, there’s absolutely nothing to recommend this solar system, in terms of resources, XP or salvage. The only real purpose for it is scanning four more planets for the quest "Task: The Model of the Spheres".
Extra-Planetary Anomaly - Angaran Satellite Navpoint
After completing the quest "A Trail of Hope" you’ll be able to talk to Maariko on Aya, who will give you this quest. Scan the first two Angaran Navpoint Anomalies in the Onaon and Sabeng systems, respectively, to open up the third navpoint in the otherwise vacant Joba system. Here you’ll find a Comm Buoy that directs you to the next location, but you can also scan it for 50 Heleus Research Data points.