About Us

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About our Society

 The Astronomical Society of Eastern Missouri (ASEM) is an Astronomy club designed to put fun and passion into astronomy. We are based in St. Charles County, Missouri, and draw heavily from the St. Louis Metro area. Our members range in age from 8 to 85 and we all “love” Astronomy. We are very family friendly. We love to “share the view” through our public outreach and education programs, our meetings, our special interest groups (SIGs), our events, our relationships with other area clubs and national organizations, and sometimes just with each other while under the stars. While you are at this website, we trust you will get a feeling for our fun with, and passion about, Astronomy.

ASEM Membership Benefits. Becoming a member provides you with the ability to borrow an ASEM club telescope. A variety of instruments for any skill-level and ability are available for you to use. New Member Info including membership application.

You do not need to be a member to attend  of the following monthly ASEM events:

  • Beginner Meeting. It’s on the first Thursday of the month, starting at 7pm, location varies. Watch this website for the next month’s location. link to Beginners-Corner
  • General Meeting. It’s on the second Saturday evening of the month. A Pot Luck dinner, main dish provided, starts at 6pm, and the informational General Meeting starts at 7pm. If you're wondering  about what to bring to the Pot Luck, contact our Hospitality committee. hospitality@asemonline.org
  • Digital SIG (astrophotography). It’s on the third Tuesday of the month, starting at 7pm. You do not need expensive equipment to get involved. Link to SIGs
  • DIY-ATM SIG (do it yourselfers). It’s on the fourth Wednesday of the month, starting at 7pm. Link to SIGs

 Weekly Public Telescope Viewing. Every clear Friday evening, ASEM members volunteer their time and telescopes at the Broemmelsiek Park Astronomy Viewing Area. Observing starts at sunset and lasts for two hours. This occurs all year ‘round. The “Latest News Flash” block gives updates on weather and observing conditions for the upcoming Friday evening. Directions to Broemmelsiek

ASEM NEWSLETTER The monthly ASEM newsletter has announcements and useful information. ASEM News Here

ASEM Astronomy Outreach Events Click here to contact our ASEM Outreach Coordinator. outreach@asemonline.org

Thousands of people, young and old, enjoy the views through ASEM members' telescopes. During the day, solar viewing, done safely and correctly, is exciting. During the evening, beautiful objects of the night sky can be experienced in our telescopes. Outreach Fun Here

Recent Announcements

  • ASEM April 2014 Newsletter You can find a copy of ASEM's April 2014 Newsletter by downloading the Adobe Acrobat document shown below.
    Posted Apr 1, 2014, 6:47 PM by Steve Boerner
  • ASEM March 2014 Newsletter You can find a copy of ASEM's March 2014 Newsletter by downloading the Adobe Acrobat document shown below.
    Posted Mar 1, 2014, 8:40 AM by Steve Boerner
  • ASEM February 2014 Newsletter You can find a copy of ASEM's February 2014 Newsletter by downloading the Adobe Acrobat document shown below.
    Posted Feb 1, 2014, 7:04 AM by Steve Boerner
  • ASEM December 2013 Newsletter You can find a copy of ASEM's December 2013 Newsletter by downloading the Adobe Acrobat document shown below.
    Posted Dec 6, 2013, 6:34 PM by Steve Boerner
  • ASEM November 2013 Newsletter You can find a copy of ASEM's November 2013 Newsletter by downloading the Adobe Acrobat document shown below.
    Posted Nov 3, 2013, 2:20 PM by Steve Boerner
Showing posts 1 - 5 of 104. View more »

ASEM Public Outreach Pictures


Latest New Flash

Our next weekly free FNOH* Public Viewing session is scheduled on Friday night, April 18th, at Broemmelsiek Park in St. Charles County.  Viewing sessions usually start at 8 pm.  See below for directions to the park. A public viewing session is scheduled for every Friday night when skies are clear. Yes, even during the winter.

Our next DIY-ATM SIG meeting will be Wednesday, April 23rd at 7:00 p.m. at the Weldon Spring Center.  The topic of the night is still in the planning stages.  Check back here closer to the date for updates.  Directions to the Center can be found below.  As always, you need not be an ASEM member to attend this meeting or any other ASEM event.

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

See the Online Weather Sources used to make the weather related call.

MSRSL comes to St. Louis in June--The St. Louis Astronomical Society will sponsor the Mid-States Region of the Astronomical League convention on June 6-8. Check the link to see the latest news.

*Friday Night Open House

Typical ASEM Meeting Scenes

(See the folder at the bottom of the page for older slide shows.)

Important Links

Meeting Information

Beginner's Meeting, First Thursday of every month, 7:00 pm to 9:00 pm.  Meetings are open format, answering questions from beginners, and providing help with telescopes.  For more information, see Beginners Corner.

Want to request a Star Party (or have another request)? Click here 

Help our Program Committee, make suggestions/requests for program material here.

Map to Weldon Spring Interpretive Center - site of indoor meetings

Map and information about the Broemmelsiek Park observing site - a premier viewing area.

Subscribe to ASEM's monthly newsletter.

Every once in a while ASEM is featured in a broadcast or print story.  See ASEM in the News.

Important Astronomy Resources

Links to other important organizations.

St. Louis Astronomical Society
River Bend Astronomy Club
Mid-States Region of the Astronomical League
Astronomical League

We have a FaceBook page for St. Louis Astronomy
Please visit it and become a fan.

Users of the astronomy area at Broemmelsiek Park may also be interested in the St. Charles County FaceBook page.

Clicking on an event in the calendar brings up more information.

ASEM Calendar

Every wonder what astronomers look at up there in the sky through a telescope?  Watch our slide show then visit our member's pages by taking the link in the left sidebar.

Contributed ASEM DigitalSIG Images

Danville Clear Sky Chart

Broemmelsiek Park Clear Sky Chart