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Earth and Mars both have rotational periods of around 24 hours (Earth's sidereal rotation period is 23 hours 56 minutes 4 seconds, Mars' is 24 hours 37 minutes 22 seconds).
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How does a planet revolves on it's axis?
For the purposes of this question we will consider a planet as a solid body - which it pretty much is anyways. As a result of a planet's formation it is left with some rotational energy. This is merely a result of chaotic systems and it would be extremely difficult to have a body with exactly zero rotational energy. Since the planet is a solid body it has to turn uniformly- an as it turns uniformly there has to be an axis of rotation, a line through the body around which it turns. If a planet is a long ways away from it centre of orbit the tidal forces are negligable and there is no impediment to it rotation. All the planets Earth and beyond rotate with a period different from their period of orbit. Venus and Mercury are tidally locked with their solar orbital period in some resonance ratio. Earth's moon and most planetary moons are like-wise tidally locked with a period similar to their orbital period. It has been proposed that Uranus was hit by some massive object that alterned its axis of rotation to an extreme degree. If this is true the mass and energy of the object must have been considerable.
What is the length of Saturn's daily rotation?
The Overall Rotation of the PlanetSince Saturn does not have a solid surface, it is difficult to define a rotation period for the planet as a whole. Different portions of its visible "surface", which represent different circulation systems in its atmosphere, move around its axis at different rates, according to whether they have westward or eastward motions relative to the overall rotation of the planet. "System I", which refers to the Equatorial region, has a rotation rate of around 10 hours 14 minutes, while "System II", which refers to non-Equatorial regions, has a rotation rate of around 10 hours 39 minutes. There is also a "System III" rotation, which refers to the rate of rotation of the planet's radio emissions, which was once thought to refer to the rotation of the "body" of the planet, and at the time of the Voyager flybys, was around 10 hours 39 minutes. However, in the years since then, the System III rotation period has increased to 10 hours 45 minutes, indicating that it is not associated with the "real" rotation of the planet. Alterations in the position of the radio field, and in the plasma field surrounding the planet (possibly caused by geyser eruptions on Enceladus), are thought to be responsible for the change in the System III rotation rate; but whatever the cause of these changes, they cannot be due to a change in the rotation of the body of the planet. So the once-hoped-for fundamental nature of the System III rotation period has been disproved, and there is no currently conceivable way of estimating the "real" rotation of the planet as a whole. A recent compilation of results yields a rotation period of 10 hours 32 minutes 35 seconds; but this value is like the proverbial two point something children per American family -- it may be mathematically useful, but it cannot be representative of any real family, since no family can contain a fraction of a child. In the same way, the compiled rotation period may be useful for some calculations (e.g., the comparison of roation period and day length mentioned below), but it has no correspondence to any real part of Saturn.Regardless of these uncertainties, there is no doubt that Saturn has the second-fastest rotation rate of any planet, both in terms of its rotation period, and the speed of its rotation at the Equator, which is just under 10 kilometers per second, or about 35000 kilometers per hour (or just under 6 miles per second, or about 22000 miles per hour). Only Jupiter has a faster rotational velocity or rotation period.Difference Between Rotation Period and Day LengthSince the rotation period of Saturn is so uncertain, the difference between its rotation period and day length is, for all practical purposes, unimportant; but as discussed at Rotation Period and Day Length, given its rapid rotation and long orbital period, the difference between the two values is only about one second. So no matter where you are on Saturn, whatever the local rotation period is, the length of the day is one second longer.The Rotational Tilt of SaturnThe axis of Saturn's rotation is tilted relative to its orbit by just under 27 degrees. This means that insofar as Saturn has seasons, they would be similar to those on the Earth, being relatively minor at the Equator, relatively extreme at the Poles, and in-between at in-between latitudes. However, since Saturn's temperature is over 200 degrees below zero Fahrenheit, even its warmest summers are very cold by Earthly standards, and seasons as we know them do not exist.Despite the lack of obvious seasonal effects, the tilt of Saturn's axis does produce a very easily observable effect, because the ring system of the planet and the orbits of virtually all of the planet's moons are very closely aligned to the planet's Equatorial plane. Therefore, as discussed at The Rings of Saturn, when we see Saturn near one of its polar summers, we see the rings from above or below, as a broad, spectacular oval; whereas when we see Saturn near the start of its spring or fall (as we do in 2008 and 2009), the rings are barely visible, due to our nearly edge-on view
What planet has a moon that is a big as it self?
None. Some of the moons of Jupiter are nearly the size of Mercury, but no planet has a moon as big as the planet itself.
Does Neptune rotate on its side on an axis?
As of 2014, Neptune is the 8th and farthest planet from the Sun in the Solar System. It has a rotational period of 0.671 Earth days.
Is there any planet which have same rotational and revolution periods as earth?
No. Mars has a similar rotational period but not revolution. For a planet to have the same revolution period as Earth would mean it would have to be in the same Orbit as Earth, with catastrophic results. One was in the same orbit as Earth during it's formation, it crashed into the Earth creating the Moon. It's possible that some extrasolar planet (that is, a planet of a star other than the Sun) might by coincidence have nearly the same rotational and/or revolution period, but we don't know of any yet (and it's not very likely that we ever will).
Why do some planet have shorter days then earth?
The length of a planet's day is determined by the speed of it's rotation on it's axis. The faster the rotation, the shorter the day. The slower the rotation, the longer the day. This is affected by many factors such as any moons the planet may have (orbital speed, rotation speed or tide lock, distance and direction of travel of the moons all should be considered), past collisions with other large bodies (planetoids and other planets and their moons), and how the stellar dust and debris were moving and colliding when the planet was formed. Some planets are tide locked to their star and have no rotation and therefore no relative "day". One side faces forever toward the blazing heat of it's star, while the other side faces an eternal frozen night.
What is the difference in earth -sun relationship between revalution and rotation?
Some people like to distinguish between the two words, with revolution meaning rotation about the planet's own axis (e.g. in 24 hours), and rotation taking place around the Sun (in 365¼ days).
Compare the rotational period of the inner and outer planets?
The rotational period of the inner planets is much faster than the rotational period of the outer planets. The rotation of some planets takes years to complete.
What is relation between sun differential rotation and core rotation of earth?
The weird thing about the Sun's rotation - as compared to Earth's rotation - is precisely that it is a differential rotation. That means that at the equator, the Sun rotates faster than near the poles. There is some recent evidence that the inner and outer cores of Earth do indeed spin at different rates and at different rates compared with the rest of the planet.
Did all planet have spherical shape?
Nearly spherical, with some polar flattening for the large gas giants which spin quickly.
What is Uranus' orbital period?
The rotational period for Uranus varies. Since Uranus is a gaseous celestial object, the interior of Uranus rotates slower than it's poles. The interior of Uranus rotates once every 17 hours and 14 minutes. However, the very strong winds in the direction of rotation causes some latitudes, such as that of about two-thirds from the equator to the south pole, full rotation occurs in as little as 14 hours. As for the Orbital period of Uranus: once every 84 Earth years.
How long does it takes the earth to rotate on its axis?
The period is 24 hours, governed by the Sun rising and setting. But this is a trick question because during that 24 hours, the Earth has gone round its orbit a little so it has to rotate for four extra minutes each day to get to noon with the Sun at the same place in the sky. The period relative to the stars is 23 hours 56 minutes, so our 24-hour day makes all the stars rise and set four minutes earlier each day.
