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IAU definition of planet


The definition of planet set in Prague, Czech Republic in August 2006 by the International ... New York City's newly renovated Hayden Planetarium did not include Pluto in its exhibit of the plan...

Why Pluto is No Longer a Planet - Universe Today


Pluto is not a comet; its orbit does not take it into the inner solar system, as the .... Why not add a new subcategory of planets to fit objects like Pluto, Eris and ...

What Is Pluto? | NASA


Pluto is a dwarf planet in our solar system. ... But Pluto does not orbit in a circle. The orbit of Pluto is ... More than 1,300 Earths would fit inside Jupiter. Jupiter is ...

Why is Pluto no longer a planet? (Everyday Mysteries: Fun Science ...


Essentially Pluto meets all the criteria except one- it “has not cleared its ... that does not meet these criteria is now classed as a “dwarf planet,” and that includes  ...

Why is Pluto no longer considered a planet? | HowStuffWorks


Aug 24, 2006 ... The planets in our solar system all orbit the sun in a relatively flat plane. ... Pluto is relatively round and orbits the sun, but it does not meet the ...

Why is Pluto no longer a planet? - BBC News - BBC.com


Jul 13, 2015 ... In 2006, Pluto was demoted from planet status. Why was it removed from the planet club?

Breaking News– Pluto not a planet! - Bad Astronomy : Bad Astronomy


Aug 24, 2006 ... Pluto is a dwarf planet by the above definition and is recognized as the .... as long as it does not orbit the SUN it falls out of the definition of the planet. .... All the TNOs and Pluto could fit inside the Earth but then all the other ...

Why isn't Pluto a planet anymore? - UCSB Science Line - University ...


The reason why there was debate over whether Pluto constitutes a planet or not ... their first official definition of a planet, and this definition does not fit for Pluto.

Pluto Not a Planet, Astronomers Rule - National Geographic News


Aug 24, 2006 ... Pluto is no longer a planet, according to a new official definition. ... Pluto has been demoted because it does not dominate its neighborhood.

The Universe Made Simple: Explained: Why Pluto Is Not A Planet


Jul 31, 2007 ... Pluto is not a planet because it does not meet all of the criteria that it .... And lastly , why is Neptune a planet if it has not cleared Pluto out of it's orbit? ...... Commonly repetitively rise fit offending if they takings in monstrosity ...

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Why Is Pluto No Longer a Planet? | Wonderopolis


The truth is, nothing about Pluto changed, but the definition of a planet did. Once these changes became official, Pluto no longer fit the definition of a planet.

Why is Pluto not a planet? – Greg Laden's Blog - ScienceBlogs


Jul 13, 2015 ... The simplest reason that Pluto is not a planet is that planet experts say ... have complex overlapping categorical status, one type of object does not. ..... Pluto should not have a minor planet number because it does not fit this ...

Why Is Pluto No Longer A Planet? We Explain : CULTURE : Tech ...


Apr 22, 2015 ... Here's why Pluto is no longer considered a planet. ... they overwhelmingly voted that Pluto fit the description of dwarf planet better than planet.