Cholganna was a dark, cool planet with a mountainous terrain, jungles, and forests located in the Outer Rim Territories, in grid square T-5 on the Standard Galactic Grid.

Cholganna was the homeworld of various creatures, including the nexus, a species of predatory felines who lived in the northern hemisphere, the bark rat, a rodent that was often prey for the nexu, and arboreal octopi. Because of their incredibly aggressive and deadly nature, the nexu were often captured by poachers, and spread off-world as attack beasts in gladiator matches.