Chrétien grants further international collaborative projects in observational astronomy. Emphasis is on long-term visits and the development of close working relationships with astronomers in other countries.
The Chambliss Astronomy Achievement Student Awards are given to recognize exemplary research by undergraduate and graduate students who present at one of the poster sessions at the meetings of the AAS. Awardees are honored with a Chambliss medal or, in the case of honorable mention, a certificate.
To foster and recognize excellence in astronomy the AAS and its Divisions award grants and prizes for outstanding contributions to astronomical research, education, instrumentation, writing, and service.