This is a khaki space nebula, the exact dimensions of which cannot be quantified. It stands like a wall in space and visually separates the Nekon-Traverse and Aeon-Width from the Utbikh-Cluster and the Dark Sea. Practically, during the Lorgan War, it served as a dividing line between the allied members of the Initiative and the hostile Lorgans.
The nebula itself can be crossed by most spaceships within a few hours. The only risk is the gas divers, who use such and similar nebulae as their habitat. In addition, the navigation instruments of older ship models go crazy due to the aurora radiation in the nebula and make them easy targets for bold space pirates.