>>89503848>why isn't pluto a planetPluto is not a planet because it doesn't meet the International Astronomical Union's (IAU) definition of a planet:
>Clearing its orbitPluto is too small to clear its orbit of debris. It's located in the Trans-Neptunian region, where other objects can cross its path.
>Dominance in its orbitPluto isn't the gravitationally dominant object in its orbit. It's not strong enough to kick out other objects in its neighborhood.
>OrbitPluto's orbit is unusual and crosses Neptune's orbit. For 20 of its 248-year orbit, Pluto is closer to the sun than Neptune.
Pluto is now classified as a dwarf planet, along with other objects that orbit the sun but haven't cleared their orbits.
