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Nov 8, 2024 · An Earth year is actually about 365 days, plus approximately 6 hours. Read more about that here. All of the other planets in our solar system also orbit the Sun. So, how long is a year on those planets? Well, it depends on where they are orbiting! Planets that orbit closer to the Sun than Earth have shorter years than Earth.
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- Rotation and revolution. Years on other planets are measured using Earth’s tropical year, which lasts about 365 solar days; one solar day is the time it takes our planet to spin, or rotate, once fully on its axis, as measured by the Sun’s position over a given point.
- Laws of motion. Kepler’s third law of motion explains that the time it takes a planet to complete a revolution is related to its distance from our star.
- Mercury. Mercury spins on its axis very slowly and completes one rotation every 59 Earth days. However, its orbit around the Sun is speedy compared to other planets.
- Venus. The hottest planet in the solar system takes about 225 Earth days to complete one rotation around the Sun. Venus spins very slowly and appears to rotate retrograde, or in a clockwise direction – opposite from most planets, which rotate counterclockwise, or prograde, in the same direction as they move through their orbits.
Feb 20, 2023 · Year length = 687 Earth days (1.9 Earth years) 4. Jupiter. Day length = 0.42 Earth days (10 hours) Year length = 4333 Earth days (11.9 Earth years) 5. Saturn. Day length = 0.46 Earth days (about ...
Oct 24, 2024 · As one might expect, the length of a year on each of these worlds is exceptionally longer than that of the inner planets. Jupiter is the innermost of the gas giants, taking 4,333 days to orbit the sun. That’s equivalent to nearly 12 years on Earth. Next is Saturn, which takes 10,759 days to orbit the sun, or nearly 30 years on Earth.
Jun 18, 2014 · 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)
Orbit and Rotation. Orbit and Rotation. Jupiter has the shortest day in the solar system. One day on Jupiter takes only about 10 hours (the time it takes for Jupiter to rotate or spin around once), and Jupiter makes a complete orbit around the Sun (a year in Jovian time) in about 12 Earth years (4,333 Earth days).
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One year on Jupiter is 11.862 Earth years, or 4,332.59 Earth days. One day on Jupiter ("Jovian day") is just under 10 hours long. There are 10,475.8 Jovian days in a Jovian year.
