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In 2006 the Astronomical Union defined 'planet' and the definition excluded Pluto. At the same time they created the term dwarf planet into which Pluto fell.

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Q: When did scientists describe Pluto as a dwarf planet?
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This used to be called a planet but now isn't?

Pluto is a dwarf planet because scientists say Pluto is too small to be a planet anymore. Pluto is a DWARF PLANET.


Do scientists say that Pluto is a dwarf planet?

Yes.


Scientists now say that pluto is a piece of leftover what?

It is a dwarf planet....


What year did scientists find out that Pluto was a dwarf planet?

2006


Why do scientists say Pluto is usually the ninth planet?

No scientists say that. Scientists know that Pluto is a dwarf planet, and not one of the 8 major planets of our solar system.


How old is Pluto and why do they call Pluto a dwarf planet?

Pluto has been declined as a planet because of its size it is the smallest planet in the solar system that scientists have found.


What did Pluto do?

It became the ninth planet in 1930. But in 2006,scientists agreed that Pluto became a dwarf planet ever since.


What are the reasons that Pluto is not the planet?

pluto is no longer a planet because some scientists believed that pluto no longer reched the requirments to be a planet, meaning pluto is to small to be a planet and is now considered a dwarf planet.


What is Pluto the dwarf planet an example of?

Pluto the dwarf planet is an example of of a dwarf planet.


Pluto the dwarf planet?

Pluto, the dwarf planet, is the smallest planet in our solar system. In 2006 scientists confirmed that Pluto was a dwarf planet. They confirmed this because Pluto does not have a clear orbit around the sun. The things that a planet must have in order to be a planet is that it MUST have a clear orbit around a star. FUN FACT: Pluto's moon is almost as big as itself! Pluto is the coldest planet in our solar planet. Pluto is an outer planet.


Is Pluto an planet?

No. The definition of the word "planet" has changed. We now have a new term, "dwarf planet", to describe things like Pluto..


How many years have scientists known about Pluto?

The dwarf planet Pluto was discovered in 1930 by Clyde Tombaugh.