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.

You can also join online using Paypal:

Please select one of the following for your membership level

Regular $25.00

Student $10.00
Family $35.00

Patron $50.00

Corporate $150.00

As of 07/15/2019, we will no longer be processing Astronomy or Sky and Telescope Magazine Subscriptions.