In the time it takes Mercury to complete one rotation, Neptune rotates 87.37 times.
In the time it takes Mercury to complete one rotation, Neptune rotates 87.37 times.
Inner planet
''Mercury (shortest),''Neptune (longest)
Revolution and rotation mean two different things. The period of Revolution is how long a planet takes to orbit the Sun, and is commonly known as a Year. So the first part of what you are asking is to compare the lengths of a year on Mercury and Neptune. 1 Mercury Year = 88 days = 0.24 Earth Years. 1 Neptune Year = 165 Earth Years. So if we compare them we get 0.24/165 = 688 so the Neptunian Year is about 688 times the length of the Mercury Year. The period of Rotation is how long a planet takes to turn on its axis and is commonly known as a day. 1 Mercury Day* = 58.65 Earth Days. 1 Neptune Day = 19.1 Earth Hours. If we compare the two, we get 58.65 days/19.1 hrs = 73.7. So a Mercury Day is 73.7 times longer than a Neptune Day. Why? Because of their orbits and their speed of rotation. * some sources quote a different length of a day on Mercury
The rotation period of Mercury is 58.65 days.
mercury's rotation period is 58.647 earth days. a rotation is when the planet turns around on its axis, like what the earth does once every day.
Mercury's period of revolution around the sun is about 88 Earth days, while Pluto's period is approximately 248 Earth years. The ratio between their periods of revolution is about 1:28. This difference is due to the much larger distance Pluto is from the sun compared to Mercury, causing it to take much longer to complete one orbit.
Neptune takes 16.1 hours to make a full rotation, which is equivalent to 0.673 Earth days.
16.1 hours
Rotation: 0.6713 earth days.Revolution: 60,182 earth days.
I believe that Neptune has this axial rotation period.
Mercury's rotation period is 59 Earth days.