Global Orbital change

The pivoting of the orbital shadow/solar radiation boundary is just a
consequence of the orbital path of the Earth,the actual cause is due
to the counter motion of orbital orientation in the Earth's orbital
motion -

http://www.youtube.com/watch?v=nwTrYVBcx9s

As axial rotation almost runs parallel to the change in orbital
orientation it is extremely difficult to gauge that motion
longitudinally,the images from Uranus help but it still is very
difficult to discern.The variations in length of the natural noon
cycles help longitudinally determine the change in orbital
orientation -

http://astro.berkeley.edu/~imke/Infrared/UranusAo/ur_time_2001_2005.jpg

Those who were taught that variable axial inclination to the Sun is
the cause of daylight/darkness differences through a year can look
at the images above and determine that a new motion is required to
explain how the solar radiation/orbital shadow boundary aligns with
the rotational axis at the Equinox.

The new motion is in the way the Earth slowly turns through 360
degrees over the course of its annual orbit and it replaces the old
pseudo-dynamic of variable axial tilt or the wildly gyrating Earth -

http://www.scienceu.com/observatory/articles/seasons/seasons.html

Again,the solar radiation/orbital shadow boundary does not really
pivot as seen in the time lapse footage above but neither does the
Earth tilt towards and away from the Sun.The answer is more
magnificent and invvolves a little effort to seperate axial and
orbital motions .

.

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