pluto
Pluto
Pluto.
The planet Pluto was demoted to a dwarf planet in august 2006. Uranus, in comparison, is a gas giant, the opposite of a dwarf. It's big.pluto was a planet but now is a dwarf planet
Well, that it's a planet for starters. It was demoted to "dwarf planet" in 2006.
Pluto is probably nearly 50% water ice. Of course, it was demoted to "dwarf planet" status.
On August 24, 2006, the International Astronomical Union redefined the word "planet" and added the category "dwarf planet". End result: Pluto was "demoted" to the status of dwarf planet.
Pluto. It is now considered a dwarf planet.
In 1853 Vesta, Juno, Ceres and Pallas were demoted from planets to minor planets, and in 2006 Pluto was demoted from planet to dwarf planet.
In 2006 Pluto was redefined as a "Dwarf planet"; and not a true planet.
Pluto. It used to be considered a planet. Now is it officially a dwarf planet. More like a big moon, or asteroid, instead of a planet.
The main reason is that it is so far away from the Sun, that it is considered part of the Kuiper belt - not the solar system. There are similar sized objects to Pluto in the Kuiper belt system, and thus Pluto was 'demoted' to dwarf planet status.
There were nine planets. Then astronomers got together and decided what to do with Eris, a dwarf planet that was discovered. They decided to make a definition for what is a planet. That led to Pluto being demoted to a dwarf planet.