On May 24, 4:54 pm, Anthony Ayiomamitis
wrote:
Dear group,

Pete Lawrence and I pooled our work from yesterday surrounding the
near-occultation of Regulus by the moon to produce an interesting view
of how Regulus appeared relatively to the moon for the two of us
separated by 2370 km apart.

For an interesting comparison of this apparent view, please seehttp://www.perseus.gr/Astro-Lunar-Parallax.htm.... someone please
provide oriel with his medication before he starts mumbling het again
about astrologers, axial rotation, apparent frames of reference and
whatever else I may have missed.

Clear skies!

Anthony.

..

The Roemerian insight on the astronomical adjustment know as the
Equation of Light is based on orbital comparisons just as Kepler's
refinement of orbital geometries is based on orbital comparisons.

http://books.google.com/books?id=N6T...+jupiter+earth

There is nothing remotely difficult in determining that the illusion
of the irregular motion of Io is due to finite light speed and this is
how the great astronomers understood it .Because the Flamsteed/Newton
maneuver of introducing the astrological framework into heliocentric
reasoning,Bradley finished heliocentricity off by invoking the
background stars and paralax to account for the Roiemerian insight.

The irregular motion of Io still can be seen today and the insight of
Roemer can still be appreciated without appealing to stellar
parallax but rather to orbital comparisons between a moving Earth and
slower orbitally moving Jupiter -

http://homepage.ntlworld.com/heather.../JupiterIo.jpg

http://www.msgc.org/images/ioshadow_msgc.gif

A real astronomer would be taking note of the change in the
orientation of Io's shadow due to the change in orbital positions
between Earth and Jupiter as both planets orbit the central star.

Go back to occultations,personally I think birdwatching photography is
far more difficult than what you do.At least the birdwatchers put
thing in correct context.