In Philolaus' system, the Earth and Counter-Earth revolved around the unseen Central Fire every 24 hours, while the Moon's revolution was monthly, and the Sun's yearly. It was the Earth's speedy travel past the slower moving Sun that resulted in the appearance on Earth of the Sun rising and setting. Further from the Central Fire, the Planets' movement was slower still, and the outermost "sky" (i.e. stars) probably fixed.
In Philolaus' system the Earth and Counter-Earth revolved around the unseen Central Fire every 24 hours while the Moon's revolution was monthly and the Sun's yearly It was the Earth's speedy travel past the slower moving Sun that resulted in the appearance on Earth of the Sun rising and setting Further from the Central Fire the Planets' movement was slower still and the outermost "sky" (ie stars) probably fixed