Ohma-D'un, also known as the Water Moon, was the largest moon of Naboo. In 32 BBY, following their newfound alliance with the Human people of Naboo, the Gungans established a settlement on Ohma-D'un, bringing multiple specimens of vegetal and animal life to populate the otherwise uninhabited moon. Ten years later, in the early days of the Clone Wars, the Confederacy of Independent Systems used a gas weapon on the moon, killing many of the Gungan colonists in the process.
Ohma-D'un was settled by Gungans shortly after the Invasion of Naboo. Boss Rugor Nass sent Obi-Wan Kenobi, Queen Amidala, Jar Jar Binks, and R2-D2 to the moon prior to the arrival of the Gungans. Obi-Wan and Amidala were to set up a stable ecosystem that could support a Gungan city, aided by Kharl Vanneb, Sakme Kelene, Professor Hallem Celaar, as well as several former members of the Naboo Underground, including Toba. Amidala and Obi-Wan went to the moon in a Mantaris-class amphibious medium transport and were given a sacred animal called the Kresch, which acted as a field guide to wildlife. The Gungans packed the transport with many different types of Naboo animals and plants to populate the moon, such as Saw-toothed granks, tusk cats, shaaks, and kaadu. Humans also established spice mines on the moon.
Behind the scenes
The moon was called "Ohma'Dun" in On Wings of Rogues. The The Complete Star Wars Encyclopedia uses a depiction of the moon seen in Star Wars: Episode I The Phantom Menace for its entry on Ohma-D'un, however its depiction as a lifeless-looking moon without an apparent atmosphere contradicts its more lush appearance in Star Wars Episode I: The Gungan Frontier.
- Star Wars: Galactic Battlegrounds (Mentioned in game databank only)
- The Monster"—Star Wars Gamer 2 "
- Star Wars: Episode I The Phantom Menace (First appearance)
- Star Wars Episode I: The Gungan Frontier
- Star Wars: Episode II Attack of the Clones (Indirect mention only)
- Star Wars: Republic: The New Face of War
- Republic 53 (Mentioned only)
- "Republic HoloNet News Core Edition 14:3:22"—Star Wars Insider 66 (Mentioned only)
- The Cestus Deception (Mentioned only)
- Yoda: Dark Rendezvous (Mentioned only)
- Obsession 1 (Picture only)
- Labyrinth of Evil (Mentioned only)
- Star Wars Galaxies: An Empire Divided
- On Wings of Rogues"—Star Wars Gamer 9 "
- The Official Star Wars Fact File 6 (NAB2, Naboo)
- Star Wars: Attack of the Clones: The Illustrated Companion
- Ultimate Alien Anthology
- Star Wars Galaxies: An Empire Divided Quick Reference Guide
- The Complete Star Wars Encyclopedia
- The Clone Wars Campaign Guide
- Star Wars: The Ultimate Visual Guide: Updated and Expanded
- The Official Star Wars Fact File Part 6 (Dark Side Influence)