The planet with the fastest revolution is Mercury. Mercury is the innermost and smallest planet in the Solar System, orbiting the Sun once every 88 days. This means that it has the shortest orbital period of any planet in the Solar System, and as such, its revolution is the fastest.
Mercury is the closest planet to the Sun, and its orbit is highly elliptical and eccentric. This makes its orbit highly unstable, and means that its revolution is very fast. It orbits the Sun at an average speed of about 47 kilometers per second (30 miles per second), which is more than twice the average speed of any other planet in the Solar System.
Mercury is also the smallest planet in the Solar System, with a radius of just 2,440 kilometers (1,516 miles). This makes it the densest planet in the Solar System, with a mass that is almost 5 times that of the Earth. The planet’s high density is likely due to its large iron core, which makes up about 75% of its total mass.
The planet’s proximity to the Sun means that it is also very hot. The average temperature on the surface is about 427°C (800°F). This makes it the hottest planet in the Solar System.
The planet’s high temperature and elliptical orbit also contribute to its rapid revolution. When it is closest to the Sun, its speed increases, allowing it to complete its revolution in just 88 days. When it is farthest from the Sun, its speed decreases, but it still has the fastest revolution of any planet in the Solar System.
Mercury’s rapid revolution is also caused by its small size and low gravity. Due to its small size, it has a much weaker gravitational pull than other planets. This means that it is more easily affected by the Sun’s gravitational pull, making its revolution faster than that of the other planets.
The planet’s rapid revolution has an effect on its environment as well. Because of its fast revolution, the day-night cycle on Mercury is very short. A day on Mercury lasts only about 59 Earth days. This means that a day on Mercury passes in the blink of an eye compared to a day on Earth.
In conclusion, Mercury is the planet with the fastest revolution in the Solar System. Its small size, high density, and proximity to the Sun all contribute to its rapid revolution. Its fast revolution also means that it has the shortest day-night cycle of any planet in the Solar System.