Pluto is not considered a planet because if you look at the other planets it is smaller. It is also as big as a regular sized comet or asteroid. Scientists think that it was a comet that happened to get into the sun's orbit.
Most important was its eccentric orbit ... the (other) 8 planets have almost circular orbits, all of which are in approximately the same plane.
Besides, it dips inside Neptune's orbit ... no self-respecting planet crosses orbit with another.
Lastly, it seems to have lots of company as a Kipper belt object.
Pluto the planet was named after the Roman god of the underworld, not the Disney dog. The name was proposed by Venetia Burney, an 11-year-old schoolgirl from England, in 1930. Pluto the Disney dog was named after the planet, not the other way around.
Pluto. Is Pluto a planet these days?
The planet with a moon named Charon is Pluto. Charon is the largest of Pluto's five moons and it is about half the size of Pluto itself.
the Roman god of death Pluto
Pluto
The answer is... PLUTO
Pluto, Mikey's dog, was named after a planet, which technically is no longer a planet.
plutonium
venus or pluto
Originally, he was named Rover. About a year after the naming of the former planet, they decided to switch the name to Pluto.
Pluto is named after the roman name for the greek god Hades.
The planet Pluto was named after the Roman god of the underworld. Pluto was chosen as the name for the planet because it reflects its cold and distant nature, similar to the characteristics associated with the god Pluto ruling over the underworld.