How many times does the Earth spin on its axis in exactly 1 year?

Question

Rounded to the nearest number. This may surprize some of you.

Answer 1

Depends on the type of year you have in mind. Tropical year, anomalistic year, ....? But the trick in your question is not that -- it is that there is one extra rotation due to the earth's revolution around the sun, hence 366.

Answer 2

O.ok., for starters-if the Earth stopped rotating on its axis, there could be little circulation interior the ambience besides via fact the oceans. this could result the two our climate and the temperature of the ambience-plus its ability to eliminate impurities (smog, volcanic ash, and so on.). If the Earth have been to end in its orbit around the sunlight, it does no longer have adequate forward velocity=centrifugal tension, to maintain a stable course. finally gravity (the two from the sunlight or outer area), could take over, at which factor that's a one-way fee ticket to the two of those. so some distance, i did no longer see any point out of the Moon in those solutions. via fact's held in stress guess. the Earth and the sunlight, it could maximum possibly hit Earth in the two circumstances. that's a foul hair day. Afterthought-it could even influence plate circulation under the Earth's crust, too. no longer that it could be counted-via fact that all people could be long gone. This (plate tectonic element), is yet another question...

Answer 3

To answer this, note that the time it takes for the Earth to spin on its axis once is NOT a day. A day is from mean noon to mean noon. When the Earth has rotated once from noon, it is not quite noon, as the Earth has revolved around the Sun, putting the Sun in a different place in the sky. It has to rotate 4 more minutes to get to noon. We see this in the stars setting 4 minutes earlier every night.

The answer depends on what year you are talking about. The two most common types are the tropical year, the times it takes for the seasons to repeat, and the sidereal year, the time it takes for the Earth to revolve around the Sun. You said "year" rather than "revolution", so I am assuming you mean the common meaning of year, which is the tropical year.

If that's the case, it takes the Earth 365.2422 days to revolve around the Sun, but in that time the Earth has revolved around that many times, plus it has revolved an extra time to cause the constellations to revolve around our sky once. So the number of times the Earth spins in a year is 366.2422. Rounded to the nearest integer (I assume that is what you mean by "number"), it is 366.

Answer 4

Looking foward to the "surprising" answer...

If you define the term "year" by the time it takes the earth to make a complete revolution around the sun, the answer is 365.25 revolutions on it's axis. Rounded to the nearest whole number would be 365.

Answer 5

The earth does not spin on its axis exactly 365 per year. The exact calculation is 365.249 times per year. Leap year every four years fixes this overage.

Answer 6

About 366, not 365. There are 365 *solar* days in a year, but rotation is measured by the stars, not the sun. That makes 366 *siderial* days.

Answer 7

365 times

Answer 8

The Earth spins 366.25 times on its axis in exactly one year relative to the distant stars. :o)

Answer 9

about 365.24222 which is almost the same as 365.25 which is why every four year you have a leap year. The difference between .24222 and .25 is also why every hundred year (like 1800, 1900, 2000 etc) that we have a different rule for leap years.

http://en.wikipedia.org/wiki/Leap_year

Answer 10

which axis? through the tilted polar axis it spins 365, if you round off the extra quarter of a day that adds up to a leap year every four years. on the "x" axis it doesnt spin at all (er, miniscule enough not to count)