Draw an equal illumination map when the sun is directly at 90 degrees east longitude, including side view and top view.

If you want to draw a photo of the bisector to the sun, you can refer to the high school geography earth revolution map to directly know the side view. As for the top view, just draw the top view of the North Pole, and then draw the termination line, regardless of longitude.

If the topic is: drawing illumination map with direct sunlight of 90 degrees east longitude, including side view and top view. In that case. Just add 90 E to the two pictures just now. Because it is 90 degrees east longitude, 90 degrees east longitude is 12 point, on a straight line perpendicular to the terminator line, in the daytime hemisphere.