• To be eclipsed means to be hidden.
• Sometimes, the sun, moon, and the Earth come into position as though they are all in a straight line.
• At times, the Earth comes between the moon and the sun and at other times, the moon comes between the sun and the Earth.
• At such times, the one in the middle casts a shadow, which partially or wholly hides the other from the sun.
• This is called an eclipse.
Figure 21: (a) Solar eclipse
(b) Lunar eclipse