Jupiter. It's rotation is a little less than ten Earth hours.
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Jupiter is the planet with the fastest rotation, spinning around its axis once every 9.9 hours. This rapid rotation causes the planet to have an oblate shape, meaning it is flattened at the poles and bulging at the equator.
If the planet increased its speed of rotation, we would not notice any difference in our weight. Weight is determined by gravity, which is determined by the mass of the planet and our distance from its center; the rotation speed does not affect this. However, it may affect other factors like the length of the day or climate patterns.
The time it takes for a planet to complete one full rotation on its axis varies depending on the planet. For example, Earth takes approximately 24 hours to rotate once, while Venus takes about 243 Earth days. The length of a day on a planet is determined by its rotational speed and size.
The smallest planet, Mercury, has a period of rotation of about 59 Earth days. Its slow rotation speed means that a day on Mercury (from one sunrise to the next) is much longer compared to a day on Earth.
The planet takes 59-60 Earth days to complete one full rotation on its axis, which means its day is equivalent to that duration. This longer day-night cycle is due to the planet's slower rotation speed compared to Earth's.
The motion of a planet on its axis is called rotation. This rotation causes day and night cycles on the planet as different parts are facing towards or away from the sun.