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At sunset on Sunday May 20, 2012, a solar eclipse will be visible throughout most of the U.S. and part of southeastern Asia. A solar eclipse occurs when the moon passes between the earth and the sun in such a way as to block some or all of the sun’s light on the earth.
Sunday’s eclipse is a type of partial eclipse called an annular eclipse. In the prime viewing region, the moon will be centered over the sun and block most of the sun except for a “ring of fire” around the moon; hence the term “annular.”
This is a relatively uncommon event. The last time a total or annular solar eclipse happened in the U.S. was 1994.
Here is a NASA map which shows the prime viewing track as a band across western Texas, New Mexico, northern Arizona, southern Utah, Nevada, and northern California. Most of the…
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