To Klazmon

Your explanation is basically derived from the cataloguers of the 18 th
century who found it necessary to explain away the Equation of Time by
bringing in an inapprorpriate analemmatic feature based on Equatorial
orientation to the Sun.The EoT has nothing whatsoever to do with
daylight/darkness asymmetry or the solstice which denotes the
hemispherical extremes of that feature but most continue to bluff and
bluster,up to and including Nasa.

http://imagine.gsfc.nasa.gov/docs/as...s/980116c.html

In will not make sense to have the Earth's axis tilt to the orbital
plane to generate that illusion of the Sun passing at higher elevations
during the summer (hemispherical term) so the other option is to ignore
axial orientation and Equatorial orientation altogether and concentrate
on the Earth's orbital motion and orientation.

Here is what the Earth's faster motion taking an inner heliocentric
orbital circuit looks like against the motion of Jupiter and the slower
and outer moving Saturn

http://www.opencourse.info/astronomy...turn_retro.gif

This takes care of the great Copernican insight and how the early
heliocentrists understood the heliocentric system and it is as exciting
today as it was back then.

Now as for orbital orientation as changing over an annual orbit -

This graphic gives a rough idea of the planet's orientation to the Sun
generating a division between planetary sunlight and planetary shadow
(which we call 'night'),for convenience any old analogy will do -

http://www.phschool.com/science/scie...strange_01.jpg

The great error in explaining seasonal changes for the entire planet
and at once ! is that the real cause is not to be tempted into
explaining axial tilt variations against the orbital plane but by the
altering of orbital orientation in a longitudinal way for only two
times during an annual orbit at the Equinoxes will the orbital
orientation align with the polar terrestial axial longitudes with a
maximum variation at noon.

Go ahead and try it,it works far better than axial tilt to the
Sun/orbital plane for it removes the need for spliting the Earth into
seperate hemispheres and will get rid of that nasty 17th century
analemmatic maneuver which causes the problem.















*http://www.bodley.ox.ac.uk/cgi-bin/i...x.x.54 .x.336