Årslängd

Årslängd, also known as the length of the year, refers to the duration it takes for a planet to complete one orbit around its star. On Earth, this period is approximately 365.24 days, which is why we have a leap year every four years to account for the extra quarter day. The concept of årslängd is fundamental in astronomy and is used to define the calendar year. It varies depending on the planet and its distance from the star it orbits. For instance, a year on Mars is about 687 Earth days, while a year on Jupiter is roughly 12 Earth years. The term årslängd is also used in a broader sense to describe the duration of any cyclical event that repeats annually, such as the growing season or the migration patterns of certain animals.