The earth is judged from west to east.

Draw the sun (just one point) in the middle, then choose one (left or right) to draw the equator (perpendicular to the earth's central axis), and shoot a ray from the sun through the center of the earth to see whether the intersection point is above or below the equator, with the summer solstice above and the winter solstice below. Then it can be judged by the rotation of the earth from west to east. Absolutely correct