Orbital Periods of the Planets

Orbital Periods of the Planets

How long are years on other planets?

A year is defined as the time it takes a planet to complete one revolution of the Sun, for Earth this is just over 365 days. This is also known as the orbital period. Unsurprisingly the the length of each planet’s year correlates with its distance from the Sun as seen in the graph above. The precise amount of time in Earth days it takes for each planet to complete its orbit can be seen below.

Mercury: 87.97 days (0.2 years)
Venus : 224.70 days (0.6 years)
Earth: 365.26 days(1 year)
Mars: 686.98 days(1.9 years)
Jupiter: 4,332.82 days (11.9 years)
Saturn: 10,755.70 days (29.5 years)
Uranus: 30,687.15 days (84 years)
Neptune: 60,190.03 days (164.8 years)

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61 comments

  1. I still treat Pluto as a planet and I’m sure many others do , I’d like to see this in your list. Hopefully it still takes approximately 248 years to orbit the Sun or have the scientists moved the goalposts on this as well?

  2. Hey! Thanks for helping me with my schoolwork! I was assigned to research the planet Uranus and this really helped! 😀

  3. thank you! I’m using this information for an accurate, fast-forwarded, animated representation of the solar system!

    1. From up above (that is, if you will scroll up to just above this bunch/list of comments) you should see the duration of years for each planet. I copied and pasted it here. So, after the colon, on what should be the next line is not my writing and I cannot and will not take any credit for it. I hope this helps you:
      “A year is defined as the time it takes a planet to complete one revolution of the Sun, for Earth this is just over 365 days. This is also known as the orbital period. Unsurprisingly the the length of each planet’s year correlates with its distance from the Sun as seen in the graph above. The precise amount of time in Earth days it takes for each planet to complete its orbit can be seen below.

      Mercury: 87.97 days (0.2 years)
      Venus : 224.70 days (0.6 years)
      Earth: 365.26 days(1 year)
      Mars: 686.98 days(1.9 years)
      Jupiter: 4,332.82 days (11.9 years)
      Saturn: 10,755.70 days (29.5 years)
      Uranus: 30,687.15 days (84 years)
      Neptune: 60,190.03 days (164.8 years)”

  4. The interesting thing is that tomorrow, 12/31, is my 84th birthday and the planet Uranus is finally back to where it was on the day I was born. One orbit for Uranus, 84 years for me!

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