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| Ion cannon | |
| Type: | Weapon |
| Continuity: | Star Wars |
| Aliases: | Mega-ion cannon |
| Availability: | Uncommon item |
| Manufacturer: | Various |
| Model: | Cannon |
| 1st appearance: | Star Wars Episode IV: A New Hope |
An ion cannon is a big honkin' space gun. They may be incorporated into the weapons arsenal of capital ships, but may also be used for planetary fortifications. An ion cannon produces enough energy to destroy large volumes of mass at a great distance, including sundering heavy space cruisers.