Here is how you can prove that the heliocentric model is false by observing the sun. The sun always moves in a clockwise direction, no matter what time of the year, no matter where on earth you are, as you see the sun move from one side of the horizon to the other, it will make a right turn, from your perspective. In the heliocentric model, when the south pole is tilting towards the sun, the sun should move in a counter clockwise direction, as it moves across the sky, from your perspective.

Same with star trails. The north star always stays stationary, all the other stars rotates around the north star. The farther south you get, the bigger of a circle the star trails will make, as they move around the point of the north star. Even when you get passed the equator, the star trails keep getting bigger and bigger, the further south you get, proving that there is no south pole. If the heliocentric model was correct, it be easy to prove that the star trails was getting smaller and smaler when viewed from say Australia, in a south ward direction, as they do in the north.

While the moon, based on every single observation I have every made, is a disc, not a ball, as I have only seen one side of the moon.