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PHOTOS: Friday Evening's Lunar Eclipse

While not the most spectacular lunar eclipse, the moon still put on a show for astronomy fans on Friday evening.

A lunar eclipse occurs when the moon passes through the Earth's shadow. Depending on what part of the shadow the moon passes through will determine how vivid the lunar eclipse is.

"Shadows have three parts--the umbra, penumbra and antumbra, which are used to describe the relation of the shadow to the degree of light casting it," reported AccuWeather.com Staff Writer Samantha-Rae Tuthill.

"The umbra is where the shadow is deepest, as the light source is fully blocked by the object casting the shadow. The penumbra and antumbra occur on the edges of the umbra where some of the light source lessens the shadow," Tuthill continued.

"The light cast on the moon during a penumbral eclipse obscures the view of the shadow cast, making the eclipse hard to notice."

Friday evening's eclipse was a penumbral one, but some astronomy fans were still able to view and capture the slight dimming of the moon.

Upload your own picture of the eclipse to the AccuWeather.com Astronomy Facebook Page.