The entire empirical modeling of the solar system inherited from Newton is based on RA/Dec where the Sun wanders up and down against a celestial sphere -
http://community.dur.ac.uk/john.luce...solar_year.gif
They now model or manipulate imaging to suit that RA/Dec conclusion where the Earth has a zero degree inclination and a pivoting circle of illumination off the Earth's Equator ! -
https://apod.nasa.gov/apod/ap170319.html
If they manipulated imaging to show a flat Earth it wouldn't be half as offensive as that monstrosity. These are the same people who manufacture 'climate change' and the fact is that it is exceptionally unhealthy for students and a productive/creative society.
A person's mind would turn to stone if they accepted this modeling monstrosity but then again, these 'explanations' don't come from off-beat website but major institutions or conduits for information.