Gauna 493 is the name given the 493rd Gauna encountered by Sidonia. Initially camouflaged by its Placenta, it quickly morphed into a shape similar to the Sidonia's Planet Buster missiles. Like the Planet Buster missiles, it contained a nose cone with multiple explosive nodules. Unlike the Planet Buster missile, Gauna 493 was able to detach its nose cone from its main body - implying that the True Body was nestled within the explosives.
Gauna 493 was destroyed by Samari when Nagate exposed its True Body.
|Knights of Sidonia Characters|
Nagate Tanikaze | Izana Shinatose | Shizuka Hoshijiro | Honoka Sisters | Mochikuni Akai | Hinata Momose | Kashiwade Aoki | Izumo Midorikawa | Eiko Yamano - Toutarou Yamano| Samari Ittan | Tonami | Kouichi Tsuruuchi | Ichirou Seii | Norio Kunato | Kaoru Hazama | Ryouhei Kasuga | Kujira Negi | Hamagata | Hashine | Suzuki
|Immortal Ship Committee|
|ET Research Center |
|Toha Heavy Industries|
| Gauna |
|Gauna 487 | Gauna 491 | Gauna 492 | Gauna 493 | Benisuzume | Placental Hoshijiro | Ocarina | Gauna 541 | Large Mass Union Ship | Lem Gauna Wall | Lem VII Gauna | Aulos|