Once every 20 years, we the people of Earth are given a special treat, Saturn and Jupiter in conjunction. A conjunction is when two objects in the sky are very close together. On Dec. 21, these planets will be 0.1 degree apart. They will be bright and low in the southwest about 30 minutes after sunset.

They have been in our evening skies for quite some time now, slowly getting closer and closer together. Jupiter is the bright object in the southwest and Saturn is about 5 degrees above and to its left (or the width of three fingers held out at arm’s length).

The Insperity Observatory will have its grand reopening Dec. 4. We hope you will be able to join us. Reservations are required, and we are limited on the number of participants. Visit our website at humbleisd.net/observatory, and requests to participate can be sent to This email address is being protected from spambots. You need JavaScript enabled to view it..

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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