Why is Pluto not considered a planet?

Pluto is not considered a planet because it does not meet all of the three criteria that the International Astronomical Union (IAU):

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1. It is in orbit around the Sun.

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2. Due to its sufficient mass, it can overcome rigid body forces and achieve a hydrostatic equilibrium (nearly round) shape.

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3. It has "cleared the neighborhood" around its orbit.

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Pluto and many other objects in the solar system are now classified as dwarf planets.

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Why is Pluto not considered a planet?

Pluto is not considered a planet because it does not meet all of the three criteria that the International Astronomical Union (IAU):

1. It is in orbit around the Sun.

2. Due to its sufficient mass, it can overcome rigid body forces and achieve a hydrostatic equilibrium (nearly round) shape.

3. It has "cleared the neighborhood" around its orbit.

Pluto and many other objects in the solar system are now classified as dwarf planets.

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