In Avatar, the 2009 film, Pandora orbits the gas giant Polyphemus.
Pandora is presented as a moon in the Alpha Centauri star system, while Polyphemus is the much larger planet around which it travels. This relationship is shown in the film’s fictional astronomical background and helps distinguish Pandora from a planet like Earth.
Polyphemus is named after the Cyclops in Greek mythology, linking Avatar’s celestial setting to names drawn from classical culture. Pandora itself also takes a name from Greek mythology, though the film’s ecology and characters are original creations.
The moon’s environment includes dense forests, floating mountains, and a biosphere connected through biological networks. The story uses this setting to contrast human resource extraction with Na’vi ecological and spiritual relationships to their home.