Star Wars (1977) 56 indicates that Bespin is the home planet of the Ugnaughts, and shows the planet as having a habitable surface — a phenomenon that is impossible on a gas giant. ... The "surface", which Lando Calrissian plummeted to in the comic, was later established as Ugnaught Surface in Bespin: Action Tidings.

What is the surface of Cloud City?

Cloud City has an atypical backstory. Floating above the surface of the planet Bespin, the city was specifically designed to harvest tibanna gas rather than to house a displaced population. Tibanna gas is used in all kinds of technology in the Star Wars galaxy, including, but not limited to, blasters and repulsorlifts.

What is under the clouds on Bespin?

Cloud City was a tibanna gas mining colony floating in the clouds of the planet Bespin, located in the Anoat sector of the Outer Rim Territories. Under the auspices of Baron Administrator Lando Calrissian, the city attempted to avoid unwanted Imperial attention.