If you mean revolution on it axis (spin/day length) rather than orbital period, then the answer is the planet Mercury, where time between sunrises is roughly 176 Earth days.
Neptune has the longest period of revolution around the Sun.
(You may mean longest period of rotation on its axis. In that case it's Venus.)
pluto
Neptune.
The planet that has the shortest period of revolution is Mercury, which is 88 days. The planet with the longest revolution is Neptune, which is 165 years. Earth's revolution is the third shortest.
Neptune has the longest orbital period, which is equal to 59,800 Earth days. Pluto's is even longer (90,588 Earth days), but it has since been reclassified as a dwarf planet.
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.
How does a planet's distance from the sun affect its period of revolution?
Neptune.
Mercury is the shortest and Neptune is the longest
Mars.
Pluto has the longest REVOLUTION period Venus has the longest ROTATION period
The gas giant that has the longest revolution is the planet Neptune.
Neptune.
The planet that has the shortest period of revolution is Mercury, which is 88 days. The planet with the longest revolution is Neptune, which is 165 years. Earth's revolution is the third shortest.
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 has the longest orbital revolution, taking 164.8 yrs to go about the Sun. The dwarf planet Pluto used to hold the record taking 248 years to circle the Sun.
Neptune takes the longest as it is the farthest away.
Neptune has the longest orbital period, which is equal to 59,800 Earth days. Pluto's is even longer (90,588 Earth days), but it has since been reclassified as a dwarf planet.
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.