Become a Member

Check Admission Criteria and Annual Fees:

Not eligible to become a Member yet? Consider applying for Observer Status.

The process of application for IAU Membership is as follows:

1.  Read the admission criteria to check if your organisation is eligible for Membership.

2. Complete and send the application form to membership@iau.global.

3. Applications are reviewed at least once a month. If retained for Membership, you will receive an acceptance letter from the IAU Secretary-General explaining the formalities to finalise Membership:

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