Why we have summer and winter? If our earth revolving around the sun, then how it is happened?

Answer 1

It is due to the tilt of the Earth's axis of rotation. The tilt is 23 1/2 degrees and it is always in the same direction with respect to the stars. That is how the north star stays right over the pole, the Earth's axis always points that way. But as the Earth orbits the Sun, the angle to the Sun changes. in June, the north pole is tilted 23 1/2 degrees toward the Sun and in December it is tilted away from the Sun by the same amount. Of course the south pole is tilted the other way, so December is summer in Australia.

Answer 2

The Earth is tilted by 23 1/2 degrees. During the Summer months,
the north is pointed toward the Sun allowing more direct sunlight.
During the winter, we are tilted away from the sun so the sunlight
is more indirect as the sun seems lower in the sky.
There are 4 cardinal points in our calender;
Summer solstice, autumnal equinox, winter solstice and vernal equinox.
Beginning of summer, fall, winter and spring. This coincides
with the position of earth as it goes around the sun.
Each of the cardinal days can take place over a three day period,
20th, 21st, 22nd. On June 22nd, summer solstice, it is the longest
day of the year. It is also the day that the north pole is pointing
directly at the sun. The next day it will have passed this point
and start pointing away from the sun, hence, the days will also start
getting shorter. For further info,
feel free to email me, [e-mail]

Added note: The north pole doesnt always point to the north star and as a matter of fact, Polaris is now circumpolar. (circles around the pole)
And if everybody picked up a book, they wouldn't have Yahoo answers and we wouldnt be here.

Answer 3

All the seasons happen only because he earth spins around its own axis and the earth is in the shape of a globe and it goes around the sun in a orbit that keeps the earth closer to the sun at certain times and far away from it at certain other times. The sun is an enormous ball fo hydrogen burning continuously sending out hea waves . If the earth were stationary at a specific spot and not spinning around its axis , onje particular face of that is half of its side would be exposed to the heat of the sun and would get scorched and the other half that is sheilded from the sun would be freezing and thus all the sides of he earth would have been inhospitable to life and the earth would be a dead planet. since the earth is spinning on its own axis the surface of the earth is getting exposed to the sun unifromly and the side that was shielded from the sun comes to be exposed to the sun gradually and after being exposed to the intense heat of the sun is getting colder gradually as that side goes away from the sun and gets shielded again and therefore the surface of the g;obe is uniformly getting warmer and colder . since the shape of the earth is a globe , all the areas exposed to the sun are not getting the same amount ot heat as the areas othee than those in the equator are located at different distances and are there fore receiving less heat that the areas in the equtorial region.since the axis of ratation of the sun is tilted , the areas located far away from the sun also get much lesser heat than those which are located closer . Beside the orbital path of the eath is an ellipse and there fore , the earth is faraway from the sun at tcertain times and closer to the sun at certain other times . this contributes to the changes in the climate depending on the idtance of the earth from the sun during the course of its rotation around the sun .since the eath takes one year for making a complete circuit around the sun , the distance between the sun and the earth in the course of its revolution around the sun in a year varies depending on the distance and this happens repeatedly and uniformly every year as the path trasversed by the earth and the distance it keeps from the sun is almost the same every year .So there is unformity in the repetition of the seasons every year .

Answer 4

What causes winter and summer is the tilt of the earth's axis as it revolves around the sun.

Answer 5

In the northern hemisphere, when the earth is pointed towards the Sun, we have summer (and conversely the southern hemisphere has winter)... when the northern hemisphere points away from the Sun, we have winter (and there's summer in the southern hemisphere)

Remember that the Earth is tilted ~23.5degrees so that is why we have seasons. If it had no tilt, there would be no seasons (and how boring that would be)

Answer 6

Because the earth movies around the sun by oblong circle.And when the earth is moving away from sun,it is getting cold..After a time the earth is getting closer to the sun and we recieve more light so it's getting warmer

Answer 7

because of the fact the earth tilts on its axis, meaning that the attitude that the solar is hitting the earth's floor is replaced through out the 365 days. this occurs on a customary schedule. it is likewise the clarification that it is not wintry climate or summer season or spring or fall on the comparable time around the international. because of the fact the earth revolves as quickly as around the solar it sweeps through one finished 365 days. The 23.5 degree tilt interior the earth's axis maintains to be oriented in direction of a element in area very close to the North famous guy or woman, Polaris. in this regard the earth acts very very comparable to a perfect. through the 365 days, the orientation of the lean in direction of the solar modifications. it is so because of the fact the earth orbits around the solar, mutually as the lean of its axis maintains to be oriented in direction of Polaris. whilst the north pole is tilted in direction of the solar, the north is experiencing warmer climate, or summer season. The south is then less warm, adventure wintry climate. gradually, because of the fact the earth maintains in its orbit, the south pole orients in direction of the solar. there is heat climate interior the south, and wintry climate interior the north.

Answer 8

This is because of distance in our earth with the sun. when we reach much nearer to sun then the summer season starts & when we go far to the sun the winter seasion starts

Answer 9

There are a few contributing factors.

1. Elliptical orbit.
2. 23.5 degree tilt of the earth.

Note of Interest.

1. We should be warmest when we are nearest to the sun. This is does not hold true because it take long time to warm up and it takes long time to cool off.

Answer 10

It's all about the tilt of the Earths axis to the plane of the ecliptic. And I know you don't have a clue about any of those, and that's the problem.

And Surveyor is quite correct except for picking up a book. The sad fact is, there's a good chance you can't read.


Doug