One Day on the Other Planets of the Solar System

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Twenty four hours a day and three hundred sixty-five days a year.  These numbers are so prominently known that we tend to forget that they only belong to the Earth, and even here with an inaccuracy factor of nearly 4 minutes per day. So how long do a day and a year take on the other planets in our Solar system?

Mercury

Rotation: 59 Earth days, however, due to the slow rotation, the length of one day is 176 Earth days

Revolution: 88 Earth days

Thanks to these factors, one day on Mercury is longer than one year.

Venus

Rotation: 243 Earth days and it rotates the opposite direction from Earth

Revolution: 224 Earth days

Again one day on Venus is than longer than one year. 

Earth

Rotation: 23 hours 56 minutes and 4,1 seconds

Revolution: 365, 25 days 

Mars

Rotation: 24 hours 37 minutes and 22 seconds = 1 day (sol)

Revolution: 686,9 Earth days (sols) 

Jupiter

Rotation: 9 Earth hours 55 minutes and 30 seconds, and it‘s not the same everywhere.

Revolution: 4,332.59 Earth days, which is almost 12 Earth years. 

Saturn

Rotation: 10 Earth hours and 14 minutes

Revolution: 10 759 Earth days, which is approximately 29 Earth years. 

Uranus

Rotation: 17 Earth hours 14 minutes. Due to the extreme positioning of the axis of the planet there are only places on the Equator, facing the Sun, that have a similar sunrise sunset period to the Earth‘s. One day and one night at the poles takes 42 Earth days each.

Revolution: 30,685 Earth days (84 Earth years) 

Neptune

Rotation: 16 Earth hours, 6 minutes. The poles nevertheles rotate faster than the Equator and therefore there is appx a 4 hour difference in rotation between Neptune’s Poles and its Equator.

Revolution: 60190 Earth days (164.8 Earth years)

Photos: Shutterstock / Graphic Design: Martina Advaney

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