The Hubble telescope satellite.
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)
The dwarf Planet Pluto
Pluto
Pluto
PLUTO
Pluto
The dwarf planet Pluto. No "planet" takes that time.
It takes a space robot years just to get to a planet, Imagin Pluto, it would take about 50 years to get to pluto. That's why we just use the telescope.
The hubble telescope.
If you still consider Pluto a planet, than Pluto takes the longest time to move around the sun. If not, Neptune takes the longest amount of time.
Pluto, it is now a dwarf planet or planetoid.
The dwarf planet that takes 252 years to orbit the sun is called Pluto. It was reclassified as a dwarf planet in 2006.