...to promote the interest in and advance the knowledge and understanding of astronomy,
the most ancient and the noblest of the physical sciences.

Regular meetings are held once a month

Dates may vary depending on facility availability.
Usually at 7:00 PM at the Adler Planetarium
or sometimes at Triton College.
Check our Meeting Schedule &
Hubble Lecture Series Sponsorship .

Board Meetings:
Scheduled an hour before the Regular Meetings.
Open to all CAS members.

Proud Sponsors of

(check "Astrofest")


Information? Comments? Questions?
E-mail us (click here)
or write us at
Chicago Astronomical Society
P.O. Box 30287
Chicago, IL 60630-0287

We are now a Meetup Group. 
Click here

to access and join Meetup.

The Chicago Astronomical Society is proud to be a certified member of the Global Star Park Network (One Star at a Time).
Click Here for Certificate

Click here for brochure .
Click here for One Star web site.

The Chicago Astronomical Society is a proud member of the Astronomical League .
( astroleague.org )

The Chicago Astronomical Society
is part of the

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The Chicago Astronomical Society is an educationally-oriented child-safe site. We support advancement in the science of astronomy and astrophysics. This site is registered with the following ratings organization to help protect our children from inappropriate material:


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