To join or renew your membership with CAS:
Download and fill out the Membership Application and send it to the following address:
Columbus Astronomical Society
P.O. Box 163004
Columbus, OH 43216
You can also email the Treasurer to have one sent to you. A membership application is also available at Perkins Observatory – look for the CAS Bulletin Board.
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As of 07/15/2019, we will no longer be processing Astronomy or Sky and Telescope Magazine Subscriptions.