Umbra, Penumbra and Antumbra

October 9, 2021

The light emitted by a light source, like any other opaque object, casts shadows from the moon and earth into space. Each shadow has 3 different regions: amber, penumbra, and antumbra.Umbrella / amber is the dark core of the shadow. Imagine a light source and an object casting a shadow. If you are standing under…