Welcome to the home page of the Columbus Astronomical Society, an organization devoted to the enjoyment of astronomy. Founded at The Ohio State University in 1947, we have been sharing our love of astronomy with Central Ohio at star parties, science fairs, schools, and anything astronomical.

We have monthly meetings and regular activities. Meetings are normally at Perkins Observatory (SR 23, 10 Miles North of I-270 towards Delaware) on the second Saturday of every month (8pm start time). Guests are always welcome. If it is clear, bring your telescope!

January 2018 Featured Image:

Society Member Joe Renzetti’s image of the Horsehead Nebula taken on the lawn of Perkins Observatory.


CAS Picnic 2014

CAS Picnic 2014

The Columbus Astronomical Society has over 200 members with a variety of interests: amateur telescope makers, astrophotographers, observers, telescope specialists, and much more.

For a fun time-lapse look at the building of the above photo, click here (You Tube Video) Thanks, Brad Hoehne!