What is the habitable moon setting of Avatar: Fire and Ash?

The habitable moon setting of Avatar: Fire and Ash is Pandora. In the Avatar universe, Pandora is a richly inhabited moon orbiting the fictional gas giant Polyphemus in the Alpha Centauri star system. Although the films often call it a world, Pandora is technically a moon rather than a planet.

Pandora is home to the Na'vi, a tall blue-skinned humanoid species whose societies are deeply connected to the moon's living ecosystem and spiritual force, Eywa. Humans travel there because of its valuable natural resources, especially unobtanium, creating the central conflict of the franchise. Jake Sully's story begins when he arrives as part of the human Avatar Program.

Fire and Ash continues the Sully family's story on Pandora and introduces the Mangkwan, or Ash People, a Na'vi clan associated with volcanic landscapes. The other options are settings from unrelated fictional or real astronomical contexts: Europa is a moon of Jupiter, Arrakis belongs to Dune, and Endor belongs to Star Wars.