Why is a year about 365 days long?

Answer 1

A year is approximately 365 days long because it takes Earth about 365.25 days to orbit the sun once. This is known as a tropical year, which is the time it takes for the sun to return to the same position in the sky relative to Earth. To account for the extra 0.25 days, we add an extra day to the calendar every four years in a leap year.

Answer 2

Well, honey, buckle up because I'm about to drop some knowledge on you. A year is about 365 days long because that's roughly how long it takes for Earth to complete one orbit around the sun. It's not an exact science because our planet likes to keep things interesting with its wobbles and such, but hey, close enough for government work, right? So, there you have it, 365 days of Earth doing its thing around the sun.

Answer 3

Oh, dude, it's because a year is the time it takes for the Earth to orbit around the sun. And like, it just so happens that it takes about 365.25 days for that to happen. So, we round it down to 365 days for simplicity's sake. Kinda like how we round up when splitting the bill at a restaurant, you know?

Answer 4

A year is about 365 days long because it takes approximately 365.24 days for the Earth to orbit the Sun. This is why we have leap years every four years to account for the extra 0.24 days, making the average year 365.25 days long.

Answer 5

It isn't. There are slightly more than 365 days in a year. A day it the time it takes for the earth to rotate about its axis. A year it the time it takes the earth to orbit the sun, being roughly how many 'spins' our planet makes on its axis during one full orbit of the sun.

Answer 6

That's the length of time it takes the earth to complete one orbital revolution

around the sun. That period of revolution is also connected ... for reasons perhaps

too complex to discuss just now ... to the period of a complete cycle of seasons.

It's actually closer to 365 and 1/4 days long (hence the leap year).

Answer 7

We seem to be "Children of the Sun" as it takes the Earth 365 days (actually a little less) to circle the Sun, our nearest star. It also happens to take the Earth about 24 hours (a little less, actually) to revolve or spin one complete turn.

Answer 8

That is a Julian year - a year in the Julian calendar, which has an extra leap day every 4 years. We use the Gregorian calendar with a year of 365.2425 days. That is the number of days it takes for the Sun to return to the same place in the sky each year. In our Gregorian calendar there are 97 leap years in every cycle of 400 years.

The number of days it takes to go round is determined by the average distance from the Sun. For every 1% increase in the average radius of an orbit, the 'year' increases by 1.5%, which is one of Kepler's laws.

We are at the distance we are purely by chance, and the conditions suited the development of life, which is why we are here. But at this distance the length of our year is fixed by Kepler's laws.

Answer 9

It is actually 365.25 days long because it takes that long to orbit the Sun once. To make up for the quarter day, we add an extra day every 4 years in a leap year. The 0.25 is actually slightly too big, so we forego the leap year every so often to adjust.

Answer 10

There are 365.25 days in a year. Not 365.

This is because: The amount of time it takes the Earth to complete a complete revolution around the Sun is 365.25 days.