A total solar eclipse occurs when the entire disk of the Sun is covered by the Moon, as seen from Earth. An annular eclipse occurs when the lunar disk does not completely block the Sun.
from Space.com ift.tt/2lWp2Db
A total solar eclipse occurs when the entire disk of the Sun is covered by the Moon, as seen from Earth. An annular eclipse occurs when the lunar disk does not completely block the Sun.
from Space.com ift.tt/2lWp2Db
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