This is not a total eclipse, but rather an annular one, in which maximum coverage leaves a thin strip of sun shining around the lunar limb. The narrow path of annularity snakes across Gabon, Republic of Congo, Democratic Republic of Congo, Tanzania, Mozambique, and Madagascar. For as much as three minutes, people in those countries can see the “ring of fire”:

Photo copyright and credit: Dennis L. Mammana

Outside the path of annularity, the eclipse will be partial. This means the sun will turn into a crescent. Observers in the eclipse zone should look at the sun-dappled ground beneath leafy trees for a unique view of the shadows. The sight of a thousand crescent-shaped sunbeams swaying back and forth on a grassy lawn or sidewalk is unforgettable.

Source: Space Weather