Sunspots are fascinating. There is a peak every 11 years and we are currently at a low. Solar observing is the only dangerous work that astronomers do. Never look directly at the sun without proper eye protection. It can cause permanent blindness. Eclipse glasses are safe, but make it difficult to see the details of the sun.

One option is to use pinhole projection. You need two sheets of white poster board. Put a small nail hole in the center of one. Put the second sheet on the ground. Now hold the sheet with the hole so that the sunlight passing through the hole falls on the sheet on the ground. Start with the sheets close together and gradually move them apart. The greater the separation, the larger the image of the sun, but it will be fainter also.

Public Night is at the observatory the first Friday monthly from sunset-10 p.m.:

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.

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