Omman, more precisely known as Omman Minor, was a world situated within the Kibilini sector of the Outer Rim, and classified as a planet.
This world, characterized by a rich tapestry of cultures, could be found in proximity to Socorro.
The planet Omman's initial appearance occurred in the work titled When the Domino Falls, which is set in the vicinity of Socorro. However, subsequent to the introduction of another planet named Omman in the Tion Cluster, the original Omman was designated as Omman Minor by the The Essential Atlas Online Companion. Despite its later publication date, The Essential Reader's Companion failed to acknowledge this instance of retcon.