Astronomical Society of Eastern Missouri


About Us

The Astronomical Society of Eastern Missouri (ASEM) is the primary outreach activity of the Alliance for Astronomy, Inc (AfA) which is a Missouri non-profit corporation organized for the public benefit with the mission to promote awareness, appreciation and education in astronomy and related sciences.

Volunteers with ASEM conduct several meetings and activities every month which are free and open to the public. Among these are:

General Membership meeting on the second Saturday of each month from 6:00 pm to 9:00 pm. These meetings provide a forum for socializing with like-minded people with interests in astronomy, feature a pot-luck supper (6pm-7pm), programs ranging from quite basic to somewhat advanced. See Meetings Page for more information.

Special Interest Groups (SIGs) also conduct monthly meetings:

The Digital Imaging SIG meeting on the third Thursday of the each month from 7:00 until ? focuses on astrophotography and features advanced help for beginners in this exciting topic. Meetings are continuing to be virtual via Zoom. See Meeting Page for more information.

The Do It Yourself (DIY) SIG meeting (formerly on the fourth Wednesday of each month) is now held from 5pm to 6pm on the second Saturday of each month, and focuses on telescope and other projects built and assembled by members. See Meeting Page for more information.

Friday Night Open House (FNOH) is at the Broemmelsiek Park Astronomy Area where the club maintains large telescopes plus any number of member instruments for public viewing. These events are every Friday night - weather permitting - and start at the later of 7:00 pm (Winter) or at Sunset (Spring, Summer, Fall) and usually last for 2 hours or so.

Please explore links in menu above to learn more about us.

Latest News Flash :

{*** Comet C/2022 E3 (ZTF) may reach naked-eye brightness later in January. Look for it in the mornings now, around 5 AM in the Northeastern sky. It will be much easier and better observed once the moon leaves the morning sky mid-month. Perihelion Jan. 12, but brightest when it is closest to Earth around Feb. 1-2. Use this MAP to find it. ***}

General Meeting

Digital SIG Meeting

Do It Yourself Meeting

Beginners Meeting

Links to video of past meetings can be found here.

Friday Night Open Houses at Broemmelsiek Park are mask optional but social distancing is expected. Please be respectful of all participants.

Click here for latest ASEM newsletter

(July 2022) ASEM is now offering telescope making classes. Come join us!

Dear Visitors: Please observe these requests while you are at the public viewing.

ASEM recognized by the Missouri Parks and Recreation Association Organization with the "Citation Award" for 2021. See link below.

Click on a date to see more information.

Connect to our Facebook Page.

Connect to Alliance for Astronomy

Would you like to help contribute to our efforts to bring Astronomy to the people? Here are a few suggested ways:

  1. Join our club ($50/yr)! Even if you do not participate, we welcome your donation. Membership form

  2. Use Amazon SMILE and choose our club for donations by Amazon. Amazon will pay $0.005 per dollar toward our 501c3. Set it up one-time via this link: Smile.Amazon = Alliance For Astronomy Inc (hint: Use Amazon, put item in cart, then go to to finish the purchase)

  3. Buy our club calendar ($15 + shipping), featuring beautiful astro-images taken ONLY by our own club members!! The page format is 12"x9". Orders taken Nov 1 to Dec 31 each year. To place orders, please contact: .