Until recently no astrono,ical event affered such opportunities
as a total eclipse of the sun.
Using ne methods,astronomerscan now make some
of the observations that once had to await an eclipse.but the beauty
and awesomeness of a total eclipse are still unequales.
In the pattern of movements of moon,earth, and sun,
there are always two or five solar eclipses each year.
Some are total,some partical,and some annular (p.152).
on teh average there are two total eclipses of the sun every three years.
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