|System||Alpha Centauri System|
|Primary terrain||Unknown (most likely gas and melt rock).|
|Behind the Scenes|
|Universe||James Cameron's Avatar|
Polyphemus is the second of three gas giants orbiting Alpha Centauri A (ACA).
Visually Polyphemus resembles a blue/purple version of Jupiter, with both less prominent bands, and a larger vortex storm. This large eye-shaped storm is the source of the planet's name; Polyphemus being the gigantic one-eyed son of Poseidon and Thoosa, in Greek mythology.
In addition to the fourteen moons orbiting Polyphemus, there is a large and a small planetoid at the gas giant's L4 and L5 Lagrangian points respectively. Since Polyphemus' orbit lies in ACA's habitable zone, appropriately sized planets or moons may have liquid surface water, and therefore support life.
Depending on where the moons are in their orbits, Pandora may have two or even three moons in its sky at once. Depending on ACA's position, Pandora and the other large moons cast dark shadows on Polyphemus, like beauty marks.
- Originally, its name was Coeus.
- Polyphemus is the name of the Cyclops from Homer's epic poem The Odyssey.