It's Pluto which is now a dwarf planet, one of probably many.
Pluto, it is now a dwarf planet
Pluto
Pluto used to be classified as a planet but was reclassified to be considered a dwarf planet.
Pluto was called a planet until 2006. Today it is defined as a dwarf planet.
none of them are but Pluto used to be the mystery planet and was called plant-X. So there's none right now.
There is debate over whether or not Pluto should be classed as a planet or not.
Britains Got Palent!
Pluto
Pluto is a dwarf planet because scientists say Pluto is too small to be a planet anymore. Pluto is a DWARF PLANET.
They are actually Called Dwarf Planets, Like Pluto used to be a planet but because of the size it is now classified as a dwarf planet.
I'm not sure what you are asking, but I think you are referring to Pluto.
Pluto was discovered in 1930, this is when it became the ninth planet. It was reffered to as such until 2006, when it was reclassified as a dwarf plant.