Pluto (冥王星 Meiōsei) is a dwarf-planet located in the Earth's Solar System. It was rarely mentioned in the Ultraman Series, but certain parts of each series does mention the existance of this dwarf-planet.
Originally a normal Planet, Pluto was demoted to a dwarf-planet in 2008. Pluto is seen as a chunk of rock and ice trapped within the planetary rotation course of Neptune. Pluto is the smallest of the planets in the solar system.
- Gransphire (temporarily)
- Geomos (temporarily)