>>4356200For thousands of years, people have tracked the movement of the constellations. We observe that every single night, the constellations make a full rotation in the sky around a single fixed point.
An easy way to observe this motion is to point a camera at the night sky and take a long exposure photo. It will trace the light of the stars as they rotate in the sky, resulting in pic related.
The parts that shits all over flat earth theory is that we observe the stars moving differently in the Northern and Southern hemispheres.
In the Northern hemisphere, the constellations all rotate around a fixed point in the sky resting over the Northern horizon (which also roughly aligns with the star Polaris). This point is directly over the North Pole.
If you are looking at the night sky in the Southern hemisphere though, you'll observe that the stars all rotate the in the opposite direction, around a fixed point over the Southern horizon.
If the Earth were a globe, this point would rest directly over the Southern Pole.
If the Earth were flat, what do you suggest is directly beneath this point?