oriel36 wrote:
Rather than have a nuisance exploit a typo,I have to repeat the statement correctly -

The insight where the polar coordinates pass through the circle of
illumination can be distinctly extracted from the orbital behavior of the
Earth by adapting the animated graphic to reflect the orbital behavior of
the moon around the Earth on the left side of the graphic while the
orbital behavior of the Earth is reflected on the graphic to the right side -

http://upload.wikimedia.org/wikipedi..._the_Earth.gif


And with your perspective as a distant observer outside the Earth you can
clearly see from the graphic that the Moon rotates once per month.
Only an ignorant homocentric observer limited to an Earthly viewpoint and
without sufficient visual IQ to appreciate it would maintain that the Moon
does not rotate.