From our database:
read here we can mention a few reasons why
Pluto is not considered a planet anymore:
Pluto is not big enough as other objects that
orbit our sun; Pluto has not either cleared its
specific orbit of smaller objects.
Pluto has not sufficient gravity to make it round-ish.
According to the International Astronomical Union
(IAU), Pluto does not fit on the new definition of
a planet; in terms of its composition and its
orbit, Pluto is unlike the other planets.
For now, there are three official classes of
objects in our Solar System: planets, dwarf
planets, and small solar system bodies. Planets
include the eight traditional planets from Mercury
to Neptune, but no longer Pluto. Pluto is
joined amongst the dwarf planets.
Click Here to return to the search form.