Why is the sun far away from the earth in summer and near the earth in winter

Why is the sun far away from the earth in summer and near the earth in winter

We call the months with the highest temperature summer and the months with the lowest temperature winter
The earth revolves around the sun under the influence of the sun's gravity, but the sun is not at its absolute center
July is far away and January is near
For the northern hemisphere, July is summer and January is winter. For the southern hemisphere, July is winter and January is summer
The difference between the distance between the earth and the sun is not enough to cause the temperature difference between summer and winter. The main cause of the temperature difference is the difference between direct and oblique rays of the sun. Because the earth's rotation axis and the plane of the earth's revolution around the sun are not 90 degrees, about 66.5 degrees. In July, the sun is relatively direct to the northern hemisphere and oblique rays to the southern hemisphere, so the northern hemisphere is hot, and the southern hemisphere is cold, It's winter. The opposite is true in January

Why is it that the earth is closest to the sun in summer?
I thought it was summer when the sun was close to us!
I got it wrong!

You should also be in China! In fact, the sun is closest to the sun in January, which is our winter. In summer in the southern hemisphere, the alternation of seasons is caused by the revolution of the earth. If you don't know, take a look at this common sense. As for why winter is closest to the sun is also caused by the elliptical orbit of the revolution of the ball, I hope my answer can satisfy you

What's the time for the earth to go around the sun?

The time that the earth revolves around the sun is one year. It takes 365 days, 6 hours, 9 minutes and 10 seconds