What are the heating degrees in the northern hemisphere and the southern hemisphere at the vernal equinox, summer solstice, autumn equinox and winter solstice?

At the vernal equinox and autumnal equinox, the sun shines directly on the equator, and the world is divided equally between day and night. Theoretically, the northern hemisphere and the southern hemisphere at the same latitude receive the same amount of solar radiation heat.

During the summer solstice in the northern hemisphere, the sun shines directly on the Tropic of Cancer. In a year in the northern hemisphere, the sun is the highest, the day is the longest, and the sun radiates the most heat; In a year in the southern hemisphere, the sun is the lowest, the days are the shortest, and the solar radiation heat is the least.

On the winter solstice in the northern hemisphere, the sun shines directly on the tropic of Capricorn. In a year in the northern hemisphere, the sun is the lowest, the day is the shortest, and the solar radiation heat is the least; In a year in the northern hemisphere, the sun is the highest, the day is the longest, and the sun radiates the most heat.

The vernal equinox is the midpoint of 90 days in spring. One of the twenty-four solar terms, every year on February 15 of the lunar calendar (about March 20 -2 1 of the Gregorian calendar), when the sun is located at 0 (vernal equinox) of the yellow meridian. On the vernal equinox, the sun shines directly at the equator of the earth, and the seasons in the northern and southern hemispheres are opposite. The northern hemisphere is the vernal equinox and the southern hemisphere is the autumnal equinox. The vernal equinox is a new year in Iran, Turkey, Afghanistan, Uzbekistan and other countries, with a history of 3,000 years.

Twenty-four solar terms: "in mid-February, half a minute, that is, half of 90 days, so it is called minutes." Autumn is synonymous. " "Spring and Autumn Stories Yin and Yang in and out" said: "The vernal equinox, Yin and Yang are also half-phase, so it is cold and summer day and night."