https://wiki.tfes.org/images/thumb/7/70/SunAnimation.gif/270px-SunAnimation.gifLong time member, first time poster. I was going over the Flat Earth Society FAQs page with my buddy (he just doesn't quite get it), and he saw the animation (link above) of how we explain night and day. It was the gif of the sun and moon traveling around the Earth with their circular patterns, and he made a pretty good point that I'm hoping one of you could help me debunk. He asked me why the animation didn't show the light produced by the sun as a circle. To be fair, if a light source is present above a flat object, it would produce a circle of light on that flat object, but this animation shows a more oval shape produced by the Sun.
Here are a few thoughts from my own head. First of all, this is an animation, not real life. No credible source has ever been to space, so we don't have a valid video of the sun going around the Earth. In reality it should be more circular, but blame that on the animation, not the theory. My second possible theory would be that the sun would make a circle of light on Earth, but the moon exists. The darkness from the moon compresses the circular light pattern from the sun, which creates the oval shape instead of the circle.
Anyone have any other ideas or maybe can confirm that I'm right with one of my two?
Thanks!