Day length in our solar system
Venus is the only planet in the solar system that rotates clockwise. All the other planets rotate anticlockwise. Venus (radius 3,760.4 miles) is similar to Earth (radius 3,963.19 miles) in size and structure but spins very slowly. A day on Venus is 243 Earth days long. Earth is the densest planet in the solar system and the only one not named after a god. Earth orbits the sun at an average speed of 66,629 mph (107 229 km/h). One year on earth is 365.24 days long. One day is 23 hours, 56 minutes and 4,06 seconds long. The extra day in a leap year was introduced to compensate for the discrepancy in the Georgian calendar. It’s easy to remember the order of the eight planets with this line: My Very Eager Mother Just Served Us Nachos. The capital letters stand for the order of the planets, starting closest to the sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.