90 years serving St. Louis
The St. Louis Astronomical Society (SLAS) is a 501(c)(3) non-profit established in 1936. SLAS is devoted to the interest and advancement of the science of astronomy. With over 200 members, SLAS is the largest astronomical society in the metro St. Louis area.
Regular monthly meetings are held on the third Friday of each month at 7:30 pm. The meetings are held in-person and by ZOOM with topics ranging from professional to amateur level. To receive a ZOOM link to participate in the meeting, please contact us.
Aurora Forecast
- Observing Tips for Nova T Corona Borealis - Downlink Link
- Follow in Galileo’s footsteps and recreate his historic observations. Download our object guide here: Link
-Download our "Winter Bright Star Challenge" - Link
- Download this presentation by SLAS member Mark Jones entitled "Interesting Astronomical Events for 2026" Updated 12-26-2025.
Enjoy these quick links and resources.
Here are the websites that Dr. Gokhale mentioned in his talk in June
Dark Sky Missouri: https://www.darkskymissouri.org
Saving the Dark' A film on Light Pollution by Sriram Murali:
https://www.youtube.com/watch?v=6fHxNn-FEnc
Globe at Night program for light pollution: https://www.globeatnight.org/
Purchase telescopes, shirts, mugs, and make a donation to the St. Louis Astronomical Society.
Our new SLAS coffee mugs have arrived. They will be available to purchase at
our regular meetings at Washington U. Price: $10 each, 2 for $15
All shirts are $10!!!
Moon Shirt
Globular Cluster Shirt
Pleiades Shirt
There is also a Dobsonian shirt
New Poster from Guy Ottwell you might be interested in. It's called the Zodiac Wavy Chart:
https://www.universalworkshop.com/zodiac-wavy-charts/?mc_cid=cfa6f33be8&mc_eid=9d6fcdbdfa
Your contribution ensures that we can continue our work advancing the science of astronomy in the metro St. Louis area. As a 501(c)(3) established in 1936, your donation is tax-deductible to the full extent allowed by law.
We use PayPal to process donations. All major credit cards are accepted. A PayPal account is NOT required to make a donation. To make a donation, please click on the "Donate" button and you will be redirected to PayPal.
NOTE: We welcome telescopes and other astronomy equipment as a donation. For more information about donating a telescope, please contact us.
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The St. Louis Astronomical Society (SLAS) is a 501(c)(3) non-profit established in 1936. SLAS is devoted to the interest and advancement of the science of astronomy. With over 200 members, SLAS is the largest astronomical society in the metro St. Louis area.