Longest year in solar system

What is the shortest year in our Solar System?

The shortest year in our solar system is Mercury at 88 Earth days. The longest is Neptune at 165 Earth years. The planets in our solar system. Credit: WikiMedia Commons. The planets within our solar system are in constant motion in their orbits and as they spin on their axes. All planets in our solar system revolve around the Sun.

How long is a year on a planet?

Listed below are the planets year lengths in earth days from shortest to longest. 1. Mercury: One year on planet Mercury takes just 87.97 earth days. This means that if you are 15 years old on Earth you would be 62 years old in Mercury years. 2. Venus: It takes 224.7 earth days for Venus to travel once around the sun.

How many solar days does a year take?

In short, our planet takes 365.2564 solar days to complete a single orbit of the Sun, which is why we add an extra day to the calendar every four years (i.e. a Leap Year, which 2016 happens to be). But because our axis is tilted, there is considerable variation in the seasons during the course of a year.

How fast does a planet spin around the Sun?

In other words, not every planet spins on its axis at a much faster rate than it spins around the sun. On Venus, for example, a day is actually longer than a year: It takes our neighbor 243 Earth days to finish one axis rotation, but only about 225 Earth days to finish one entire orbit around the sun.

Is a day longer than a year?

On Venus, for example, a day is actually longer than a year: It takes our neighbor 243 Earth days to finish one axis rotation, but only about 225 Earth days to finish one entire orbit around the sun. A day on Neptune, meanwhile, is shorter than an Earth day by a good 8 hours—but it only completes an orbit about once every 165 Earth years.

How does a planet orbit the Sun on New Year's day?

Every New Year's Day, the Earth returns to the same point it was the year before. The amount of time it takes a planet to orbit the sun is dependent on how fast a planet orbits the sun, which in turn is determined by how far away a planet is from the sun. The closer a planet is to the sun, the stronger the gravitational pull from the sun.