When the earth is at perihelion, why is it close to the vernal equinox?

The earth keeps running. By about 65438+February 22, the earth began to be at the perihelion, and the sun was directly on the Tropic of Capricorn. This day is the winter solstice in the northern hemisphere. At this time, the northern hemisphere gets the least heat, the shortest day, and the climate is quite cold, which is winter in the northern hemisphere. It's just summer in the southern hemisphere.

After the direct point of the sun returned to the north, on March 2 1 day, the sun once again directed at the equator, which was the vernal equinox in the northern hemisphere. At this time, it is spring in the northern hemisphere and autumn in the southern hemisphere. In this way, the earth revolves around the sun in a one-year cycle, resulting in the replacement of four seasons.

I hope you are satisfied.