The axioms are -
1 -The Earth orbits the Sun
2 - Planets closer to the Sun moves faster
3 - The Sun has a forward motion through space and around the galactic centre.
In 21st century terms and in the opposite direction to experimental sciences, the variations in orbital speeds of each individual planet is consistent with those three axioms.
Experimental sciences are restricted to analogies but not directly imposed on compound orbital motions as a 'cause'. The Earth faces in one direction in space as a function of its orbital motion therefore it must have a surface rotation to the central Sun as a consequence. It appears a top down approach to variable orbital speeds as indicated by the Fomalhaut system and its offset Sun giving a default 'elliptical' geometry -
Compound orbital motions of the planets vs the galactic orbital motion of the Sun provide a tempting area of research rather than trying to scale up experimental sciences using celestial sphere modeling.
As people are more interested in imaging and spaceflight and have outgrown theoretical voodoo, here is a chance for dynamicists to do something useful for a change. This is not an x-factor thing where I am appealing to so group, this is how compound orbital motions and a number of axioms appear to me.