Newton's ballistic agenda assumed that planetary heliocentric orbital
motion can be accounted for within an isolated solar system from the
perspective that the other visible stars had no influence on our solar
system .

"Cor. 2. And since these stars are liable to no sensible parallax from
the annual motion of the earth, they can have no force, because of
their immense distance, to produce any sensible effect in our system.
Not to mention that the fixed stars, every where promiscuously
dispersed in the heavens, by their contrary actions destroy their
mutual actions, by Prop. LXX, Book I."[Principia]

Worse still,in setting up his ballistic agenda within an isolated
solar system,he adopted a sidereal format for orbital motion by
morphing Flamsteed's axial rotational/stellar circumpolar equivalency
to a geocentric/heliocentric orbital equivalency.

http://astrosun2.astro.cornell.edu/a...1/sidereal.htm

"That the fixed stars being at rest, the periodic times of the five
primary planets, and (whether of the sun about the earth, or) of the
earth about the sun, are in the sesquiplicate proportion of their mean
distances from the sun."

http://members.tripod.com/~gravitee/phaenomena.htm

Should any man attempt to include the solar system's galactic orbital
motion with a line drawn through the Sun's galactic orbital path he
will develop a distinct antipathy towards Newton's sidereal
astronomical format based on a geocentric/heliocentric orbital
equivalency.

Keplerian motion as a property of the solar system's galactic orbital
motion generates many attributes and avenues for exploration.The ice
ages and their evolution is conditioned by variations in orbital
motion,while ellipticity of planetary motion changes,Kepler's second
law remains constant thereby influencing the level of sunlight
received in both hemispheres.

Keplerian motion as a property of the solar system's galactic orbital
motion relies on variations between an inner galactic orbital
trajectory generating a more circular heliocentric orbital motion and
a more elliptical heliocentric orbital motion as the entire solar
system moves periodically to an outer galactic orbital trajectory.


It is remarkable that any science was done over the last number of
centuries and far from critisising anyone,the ability of men to work
around the Newtonian error is something to behold.It is easy enough to
gauge the influence of the motion of the entire solar system on
heliocentric orbital motion of planets and from there into the
climatological and geological effects.

I understand that Newton did the best with what he had at the time and
who could fault him but he would have gone bananas with the
astronomical data we now have at our disposal but unfortunately
contemporaries can't handle the material effectively or accurately.For
the bewildering reason that the memory of a dead scientist must be
defended at all costs is a poor excuse for remaining with the 'fixed
stars' concepts of 17th - early 20th century theorists.

In any case,Keplerian motion has a better setting within the motion of
the entire solar system around the galactic axis and subsequently the
Milankovitch cycles and their influence on climatological modelling in
terms of ice ages.