Length of days and years It is different for each of the stars orbiting the Sun due to a number of factors.. The distance from the Sun, the tilt of the planet’s axis, its rotation and translation speed, and the shape of its orbits affect the length of days and years on these planets.

If 365 days and a quadrilateral with an “extra” day are not enough to accommodate life, how about a world with years with 60,190 days? Find out the length of days and years on other worlds in our Solar System!

There is a year that comes first

The counting of days and years is different for each planet in our Solar System.. Some days last only 10 hours, some days can last more than 5 thousand hours, and interestingly, there are years that end before sunset. But how is this possible?

What will determine the days and years are two movements: rotation and translation. Days are marked by the speed at which the planet can rotate around itself and complete its rotation.

Years are related to its translational motion, that is, its complete rotation around the Sun. As the distance from our star increases, the time it takes for a star to complete its orbital journey becomes longer.

The speed and time it takes a planet to orbit the Sun will determine the length of the year.

Although we are used to associating the year with the number of days, these are independent phenomena. Therefore, it is possible for a day to last longer than a year on other planets. However, this exception has only been found on one planet so far. Can you guess which one it is?

Is it New Year’s Eve somewhere in the Solar System?

Can you guess which is the smallest and largest year in our Solar System? Check out!


If you think January takes a while, imagine living in a world where days are 1,416 hours long. If the idea doesn’t appeal to you, it’s best to avoid living on Mercury. Years on the planet closest to the Sun last about 88 Earth days. The length of a Mercury day is equal to 59 Earth days.



Besides having a reverse rotation and an atmosphere full of deadly gases, Venus also likes to vary. Your days are longer than your years. One year on this planet corresponds to 225 Earth days, and the length of one day on this planet is 243 Earth days. On Venus it is very logical to say: “the year ends, but the day does not end.”

A very special little world full of oddities: Venus.


The length of days on the red planet is very similar to ours, lasting 24.6 hours. However, due to its distance from the Sun The Martian year is slightly less than twice the number of Earth days, corresponding to 687 days.



The largest planet in our system has the shortest days. A day on Jupiter lasts 10 hours. However, one year corresponds to 4,333 Earth days.

One year on Jupiter is equivalent to approximately 12 Earth years.

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The ringed planet also has short days. The length of a day on Saturn is approximately 11 hours and its years are 10,759 days..

One year on Saturn is equivalent to 29.4 Earth years.


Greek sky god has a year lasting 30,687 days. The length of a day on Uranus is 17 hours. Although the years are longer due to the distance from the Sun, the days are shorter due to the rotation speed of the planets.



At the far ends of our system is Neptune. The god of the seas’ days are 16 hours long and he requires approximately 60,190 Earth days to complete his journey around the Sun.

It was only in 2011 that Neptune completed its first revolution since its discovery in 1846. Your next “new year” will only be in the year 2176.

Every 165 Earth years, Neptunians celebrate their New Year.

Although it may seem like an ordinary curiosity, knowing the duration of the planets’ orbits is important for exploring our Solar System. Knowing the planet’s position on specific dates helps satellite and probe launches travel shorter distances, optimizing the process.

Did you like the content? Take the opportunity to learn what the temperatures are in the Solar System. Stay tuned to TecMundo to learn more about astronomy!

Source: Tec Mundo

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I'm Blaine Morgan, an experienced journalist and writer with over 8 years of experience in the tech industry. My expertise lies in writing about technology news and trends, covering everything from cutting-edge gadgets to emerging software developments. I've written for several leading publications including Gadget Onus where I am an author.


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