Pre-registration is now closed.

Early registration opened on 1 November 2008 and closes on 1 May 2009.

Regular registration will open on 2 May 2009 and close on 24 July 2009.

On site registration will be available for the duration of the GA (3-14 August 2009).

Note that early registration is considerably cheaper than the other options.

For general information on the registration procedure for the 2009 General Assembly of the IAU, go to:

The IAU rules of registering for IAU GAs and details of fees are given in: