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<DIV><FONT size=2 face=Arial>An additional observation. Io and Europa are
each about 2000 miles in diameter. Say that one passed the other 2000
miles in the Z-axis. Then no actual mutual eclipse even happens.
However, the Earth is bigger, and from certain locations on Earth, an observer
could see a partial or total occultation of one by the other, even when no
actual (solar) mutual eclipse had occurred. Such detaills were part of why
the math was so overwhelmingly complex. And why an exact location on Earth
was critical. Actually, "partial" eclipses or occultations seem
unimportant, as they only last a few seconds and if they result in only a
minimal dimming, no big deal.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>So my interest (and apparently also that of Meeus)
was exclusively for total eclipses. They only lasted a few seconds, (up to
about 16 seconds max, as I recall), but they were apparently
brain-jarring, as a reliable object rather suddenly disappeared, and then
reappeared.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Carl Johnson</FONT></DIV>
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