thats downright boring next to some of the models they come up with.

there is a model with a hollow/torus earth,
were the sun is on the inside, while we are on the outside.

the sun dips up and down anlong the poles and leaves through the gigant holes in the arctic&antarctic (that nasa covers up)
which causes the daylight cycle.

and the sun moving throughout the sky is just an illusion caused by atmospheric lensing