Plenty of flat-earthers say that star trails prove the flat earth. If you use a long exposure camera you can see that in the northern and southern hemisphere the stars travel in a circular pattern. Flat-earthers say this proves that the earth isn't moving, the stars are moving around us are moving.
However, if you go to the equator you will see that star trails do not move in a circular pattern, they move in the half circle, like a rainbow, from horizon to horizon. Then if you look to the north the lines curve to the north and if you look to the south they curve to the south.
If the earth was flat, the trail would just look like a bigger and bigger circle, not two individual circles. It's almost like the stars move in a spherical path and in a circular pattern above the earth.
So how do star trails move on a flat earth?