I only read the picture, but didn't read the text supplement. Clockwise rotation, the principle is exactly the same.

1. Draw the rotation direction of the earth according to the revolution wind direction, and judge the north and south poles-contrary to my picture, the north pole is on it.

2. Make a solar hemisphere and a night hemisphere, and see if it is in the solar hemisphere or the night hemisphere in the Arctic Circle. If it is the solar hemisphere, it is 6.22.

According to the direction of revolution, the change should be in order of spring, summer, autumn and winter.