If by this, you mean the planet next closest to the sun, the answer is Neptune!
Of course, Pluto isn't a planet any more.
Hope this helps!
The IAU arrived at a new definition for "planet" which left Pluto out in the cold. It is now designated as a "Dwarf Planet".
There were a total of nine planets in the solar system when Pluto was considered a planet.
Pluto, it is now a dwarf planet or planetoid.
Pluto is not a planet its a dwarf planet
The IAU arrived at a new definition for "planet" which left Pluto out in the cold. It is now designated as a "Dwarf Planet". also it was called a planet when is was larger but now it has become smaller scientists no longer class it as a planet
Pluto is a rocky world. Pluto is now reclassified as a dwarf planet.
Pluto is a dwarf planet
dwarf planet Pluto
Pluto is a planet!
neptuneNeptune is the closest to Pluto. Uranus is the second closest planet to Pluto. Saturn is the third closest planet to Pluto. Jupiter is the forth closest planet to Pluto. Mars is the fifth closest planet to Pluto. Earth is the sixth closest planet to Pluto. Venus is the seventh closest planet to Pluto. Mercury is the most furthest away from Pluto. The Sun and the moon are not considered as planets. The planet Pluto is also not considered as a planet.
no Pluto is the smallest planet in the worl and Pluto is also the outer planet
Neptune. It would be Pluto, but Pluto is a dwarf planet ( a planet that was a planet, but decided that it wasn't a planet)