Technically, since Pluto is no longer a planet, but a dwarf planet, Uranus is the planet that takes the longest to orbit the sun.
Neptune takes the longest as it is the farthest away.
a revolution
It takes the planet Mercury the equivalent of 59 Earth days to make one revolution on its axis. Mercury is the closest planet to the Sun.
Because the farther away a planet is from the sun the bigger its orbit is and that will make a revolution longer.example: Neptune is the farthest planet from the sun and it takes 164 earth years to revolve around the sun and Mercury is the closest planet from the sun and it takes 88 earth days to revolve around the sun.
All planets in our solar system vary in the time it takes them to complete a revolution. This is due to their differing distances from the sun. As far as rotation goes, the time varies from nine hours and fifty minutes for Jupiter to 244 days for Venus to make a like rotation.
Neptune takes the longest as it is the farthest away.
Io is a moon of the planet Jupiter.
a revolution
The velocity of a planet around the sun is inversely related to the distance from the sun. So the slowest planets are the ones farthest out. If you consider Pluto a planet, it takes the longest time to revolve around the sun. If you do not consider Pluto a planet, then Neptune would be the farthest planet from the sun and takes the longest time to revolve around the sun.
You suck questions!
225 days some where around there
Period of rotation
the time taken by a planet to make one revolution around the sun.
Pluto has the longest year, if it was still a planet that is, equal to 248.76 Earth years. Since Pluto is no longer considered a planet, the planet with the longest year is Neptune, at 164.8 Earth years per revolution around the Sun.
It takes one year for us to make a revolution around the Sun.
The Earth revolves around the sun once per year.
The time it takes for any given planet to make one complete revolution around its sun determines the length of its year.