Originally posted on reddit.
I was looking at the preview images from On the Frontlines and noticed something first mentioned in the TFA Visual Dictionary. Towards the end of the Battle of Jakku, the Empire fell back on the research installation located there and defended it for a time before destroying it and jumping to the Unknown Regions. At first glance, this seems completely consistent with the Observatory in Empire’s End; however, we also know the location of the research facility from Rey’s Survival Guide – Carbon Ridge. This is not the same location as the Observatory, which was built on the Plaintive Hand Plateau, which is far enough that Rax used a ship to travel from his base at Carbon Ridge to the Observatory.