Whenever the Earth sees a solar eclipse (Aug. 21), there is also a lunar eclipse, but if the moon does not line up exactly, the eclipse will be partial or penumbral. On Aug. 7 there will be a partial lunar eclipse, but sadly it will only be visible from Earth’s eastern hemisphere. It will not be visible in America.

A total lunar eclipse is when the moon passes into Earth’s shadow and the moon turns red. We see a partial eclipse when some of the moon misses the shadow. The third type is a penumbral eclipse. This is when the moon sees part of the sun covered by the Earth. Sunlight reaches the entire moon, but it is less sunlight than usual.

To see the wonders of the night sky, come to the Insperity Observatory on public night. It is from sunset to 10 p.m. on the first Friday each month: humbleisd.net/observatory.


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Aaron Clevenson
Author: Aaron ClevensonEmail: This email address is being protected from spambots. You need JavaScript enabled to view it.
I am the observatory director at the Insperity Observatory in Humble ISD. I am also an adjunct astronomy professor at Lone Star College-Montgomery where I teach solar system astronomy and stars and galaxies astronomy. I am the author of the astronomy textbook, “Astronomy for Mere Mortals.” I am a past president of the North Houston Astronomy Club, and was the chair of Astronomy Day in Southeast Texas in 2015 and 2016. He is an observing program director with The Astronomical League, coordinates their Master Observer Progression Awards, and has authored six of their observing programs.