Star Wars: The Essential Atlas Online Companion

The Star Wars: The Essential Atlas Online Companion is a series of articles on the official Star Wars website published in the wake of the release of the The Essential Atlas. The articles are the lists of systems that appear in the appendix of The Essential Atlas, but many systems now have an entry for which sector they are located in, a feature that the published work does not. The lists are intended to be used as a dynamic document, with updates and revisions planned to either correct erroneous information, add detail to existing placements, and add locations as new works are released.

On March 15, 2011, a map of the Mid Rim sectors and a new appendix were released. The appendix contained the sectors information for Mid Rim systems, the forgotten systems in previous version and the new systems created (including in the Star Wars: The Clone Wars (TV series)).