Calumet Astronomical Society

Open House Status  

Weather permitting, our first open house for 2018 is scheduled for March 24, 2018 from 8:00 pm until 10:00 pm.

Contact us at:





Welcome to the Calumet Astronomical Society, Northwest Indiana's Celestial Connection!

"Astronomy compels the soul to look upwards and leads us from this world to another"      Plato

The Calumet Astronomical Society has been serving as the Region's organization for astronomical study, education, recreation, and outreach for over 35 years. Visitors are welcome to all of our events and there are many benefits of membership in the Society. Follow the Site Navigation links to specific information on the Society and its activities.

Founded in 1975, and incorporated as an Indiana non-profit corporation in 2000, the Calumet Astronomical Society, Inc. (CAS) is a 501(C)(3) not-for-profit organization created for the purpose of pursuing the study of astronomy and promoting the education of of astronomy and space science. The CAS membership consists mainly of enthusiasts from the Northwest Indiana and Chicago metropolitan areas, but is open to anyone.

The Thomas Conway Observatory location

To get directions, click on "more options" then enter your location on top of the observatory's address.

What you can find on the CAS website:

Here will you find a Calendar pertaining to the observatory, general meetings and astronomical events for a particular month. Stay up to date with the events page.

History :
On the history page you will learn about where, when and how the Calumet Astronomical Society began. You will also learn the history of the one-of-a-kind observatory.

Membership :
On the membership page you can find all the information you will need to become a member of CAS!

Galleries :
Browse through different galleries about Conway and other great astronomy subjects.

Weather :
Plan your star-gazing nights with the latest forecasts in your area.

Get the latest Astronomy news from around the world.

The Night Sky
Find information on astronomical objects in your night sky for the month.


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