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Activity Discussion Science & Technology Is Pluto a planet or not?

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  • Manpreet

    Member
    May 22, 2021 at 9:18 pm
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    As prescribed by the IAU, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has cleared the neighborhood around its orbit.”

    With this definition, Pluto was removed from the family of planets of our Solar System. Pluto failed to fulfill all the desired requirements. It orbits around the sun and has sufficient mass to assume a prescribed shape but it do not have a cleared neighborhood.

    What is meant by a cleared neighborhood?

    Well, this means that the celestial body should be gravitationally dominant in its region. It should be the most powerful in and around its vicinity but Pluto shares its orbital belt with its neighborhood particles or celestial bodies. That means that some other celestial bodies have same energy as Pluto does, thus they share their orbits. Thus it do not have a clear neighborhood.

    Thus, Pluto is no longer considered as a planet.


    I hope this answer helps you.😊

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