WWW: Penumbra

Penumbra is the partial shadow (as in eclipse) created between regions of complete shadow and complete illumination. Happening tonight!

Image result for images of penumbral lunar eclipse




Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s