Page 11 - BP1Z 010 Luna Eclipse

Astrologists define two types of

shadows falling from the earth

onto the moon: umbra and

penumbra. Umbra is the

darkest part of Earth’s shadow;

penumbra is not so dark.

A total eclipse of the moon

occurs when the moon passes

through Earth’s umbra. A

partial eclipse will occur if the

moon is within Earth’s lighter

shadow, the penumbra.