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.
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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