When the earth is located in a, the date is around (), and the solar term in the northern hemisphere is (). When the earth is located in C, the date is around (), the solar terms in the northern hemis

When the earth is located in a, the date is around (), and the solar term in the northern hemisphere is (). When the earth is located in C, the date is around (), the solar terms in the northern hemisphere. First of all, the direction of the earth's rotation marked on the earth's axis is counterclockwise, so it is also counterclockwise (A→B→C→D), and it is also known that it is seen from above the northern hemisphere. Therefore, it can be seen that the sun at point A is facing the Tropic of Cancer, that is, the summer solstice in the northern hemisphere (June 22); The sun at point C points directly to the Tropic of Capricorn, summer in the southern hemisphere and winter solstice in the northern hemisphere (65438+February 22nd). According to the revolutionary direction judged before, we can know that B is the autumnal equinox and D is the vernal equinox.

The top is not necessarily vernal equinox, which depends on the rotation direction of the target. If the rotation direction of this picture is reversed, the autumnal equinox is at the top.

I hope you can understand my explanation ~