Chol Nebula

The Chol Nebula was a massive nebula that partially engulfed the Cholganna system in the Outer Rim Territories. The nebula consisted of space dust and gases which were dense enough to prevent sensor arrays or transmitters penetrating the area, making it especially dangerous to navigate. The nebula appeared to be a crimson red color to those who viewed it in space. The planet Cholganna passed through the nebula for approximately two thirds of its orbit of Chol, the star systems sun.

Behind the scenes
The Chol nebula first appeared in 2013 in Beyond the Rim an adventure module written by Sterling Hershey for the Fantasy Flight Games roleplaying game, Star Wars: Edge of the Empire.