Question

What are dwarf planets? Why Pluto is classified as dwarf planet? Name two other dwarf planets.

Answer 1

Dwarf planet refers to those celestial object that is neither a planet or natural satellite.
To become a planet a celestial object has to fulfill 3 criteria --
1) It had to be in orbit around Sun.
2) It should have a nearly round shape
3)It should have cleared it's neighbourhood around its own orbit.

But what this cleaning of neighbourhood mean?
Cleaning of neighbourhood means that a planet has no other celestial object near it's orbit other than its natural satellite. But Pluto has neighbourhood that is the Kuiper Belt.

Although Pluto fulfills the 2 criteria it doesn't fulfill the 3rd that makes it a dwarf planet

The two other dwarf planets are Eris And Ceres

Hope This Helps You!

Answer 2

Dwarf planet means a celestial body resembling a small planet but lacking some criteria which make it away from planets.
pluto is classified as dwarf planet because its too small to called as planet and it dont have much of its gravitation field.
other two planets are ceres which is present in asteroid belt and , Quaoar..

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