Read this paragraph.
A total solar eclipse occurs when the moon
passes completely in front of the sun. There are five
phases of a total solar eclipse. During the first phase,
the partial eclipse phase, the moon begins to pass in
front of the sun, blocking a fraction of it. Second,
the total eclipse phase begins and the moon blocks
the light from the sun when viewed from a specific
location. The third phase, called the totality, is the
specific point when the moon completely covers the
sun. In this phase, the sky becomes dark as the
umbra, or complete shadow of the moon, totally
hides the sun's rays, bathing the earth in darkness. In
one of the most dramatic elements of a total solar
eclipse, the sun's corona, or upper atmosphere,
shines all around the moon, which appears black
against the fiery halo of the corona. During the
fourth phase, the total eclipse ends when the moon
begins to move away from the sun and the sky
lightens. Finally, in the fifth phase, the moon moves
Opletely out of line with the sun and the eclipse
ends.

Which of the following is a minor supporting detail in the one paragraph