Thomas A.

asked • 12/12/12

Why is Pluto no longer a planet?

What happened??

Jessie B.

Hi Thomas,

Drew answered your question thoroughly and I will elaborate a little on it.  Pluto was no longer considered a planet in 2006.  One easy way to picture why this is the case is because Pluto is smaller than our Moon!  To our understanding, Pluto is just a chunk of rock that is smaller than our Moon and rotates around the Sun differently from the eight planets.  In order to be considered a planet, it must rotate around the Sun in a circle and have significant size.



Alan B.

Planets rotate on their axes and revolve around the sun in elliptical (not circular) See orb  for reasons why Pluto is no longer considered a full-fledged planet.
Percival Lowell (PL) and (u) Clyde Tombaugh (TO) would not be happy to hear the news about Pluto. 


4 Answers By Expert Tutors


Adrian A. answered • 12/12/12

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Thomas R. answered • 01/05/20

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Drew P. answered • 01/24/13

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