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Solar Eclipse
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About once every 18
months, the moon comes directly between the earth and the sun. A total
eclipse takes place when the moon completely covers the sun and is shown
in the picture to the left. When the moon hides the bright surface of the sun,
it becomes dark as night during the day. The length of an eclipse can vary
between a few seconds to as long as 8 minutes. Before and after a total
eclipse the moon only partially blocks the sun. These partial phases of an
eclipse may last for several hours.
A Partial
Eclipse
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Astronomers
travel great distances to observe a total eclipse. They do this because during
the eclipse they can study parts of the sun not visible at other times. The
halo you see in the picture of the total eclipse is the corona. Any other time
it is too faint to be seen.
Questions-
What is a
solar eclipse?
Why do
scientists study this eclipse?
What is a
partial eclipse?
What is the
halo of light left during a total eclipse called?
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