This section of the FAQ page includes the quote
The Earth is not a planet by definition, as it sits at the center of our solar system above which the planets and the Sun revolve.
This is quite a bold statement to make. What verifiable evidence do you have to back up your claim that the Earth sits at the centre of the Solar System with the Sun and planets rotating above it? Simple belief not really sufficient here. There must be evidence.
Before we start with evidence, let's see what are we dealing with:
Earth is in the center of "Solar system" in Geocentric model, not in Flat model.
In Flat model there is no Solar system, Earth is at the bottom, not at the center, and everything else is smaller and above it.
The center is nothern hub, or some point little lower than that.
(*insert link to description*)
In Geocentric model the system is still not called "Solar", Earth really is in the center of heavens, static and spherical, surrounded by several concentric crystal spheres, each of which is carrying own set of celestial bodies.
Spheres rotate around the Earth and provide cosmic movement.
(
https://en.wikipedia.org/wiki/Celestial_spheres)