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Friday’s harvest moon comes with penumbral lunar eclipse

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DENVER -- The full moon in September isn’t just any regular full moon -- it’s the harvest moon. And this year, a penumbral lunar eclipse will coincide with the lunar event.

According to Space.com, the term “harvest moon” refers to the full moon that falls nearest to the autumnal equinox, which happens at 8:21 a.m. Thursday.

A full moon occurs when the moon is on the side of the Earth opposite from the sun. The Earth, the moon and the sun all fall in a straight line.

Sometimes, when they all line up, the Earth’s shadow blocks the sunlight from falling onto the surface of the moon.

That will be the case Friday when the moon will pass through the very outer region of Earth's shadow, creating a penumbral eclipse, according to Space.com.

This is the last harvest moon eclipse of any kind until 2024. The next total eclipse of the moon will be Jan. 31, 2018.

“The eclipse will be visible to varying degrees across Europe, Africa, Asia, Australia and the Western Pacific," Space.com wrote.

But because the moon becomes full at 1:05 p.m., it will not have risen for people in Colorado to see the penumbral eclipse, which will be at its maximum at 1:54 p.m.

Even though it won't be visible in Colorado, it can be seen during a four-hour webcast on Slooh.com beginning at 10:45 a.m.

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