The sun shines directly between the equator and the tropic of Capricorn (1 1? What is the solar term of 43)

When the sun shines directly on the equator, there are two solar terms: the vernal equinox and the autumnal equinox. The annual variation of the direct point of the sun is from the Tropic of Cancer to the Tropic of Cancer and back to the Tropic of Cancer. Therefore, when the sun shines directly north of the equator, most of the seasons in the northern hemisphere are summer. When the sun shines directly to the south of the equator, it is autumn and winter for China, which founded the 24 solar terms in the northern hemisphere. From the equator to the tropic of Capricorn, the changes of gas knots are: autumnal equinox, cold dew, first frost, beginning of winter, light snow, heavy snow and winter solstice. At the autumnal equinox, the sun shines directly on the equator, and at the solstice in winter, the sun shines directly on the tropic of Capricorn. Then, when the sun shines directly1143, it should be the beginning of winter.