Astronomy: Associations

Professional and Amateur collection, research, and analysis of variable star observations.

Established 1899, AAS is the major professional organization in North America for astronomers, other scientists and individuals interested in astronomy.

An international organization of colleagues interested in antique astronomical telescopes, books, binoculars, and related materials.

Disseminates astronomical information. The ASP has become the largest general astronomy society in the world, with members from over 70 nations.

Improves and promotes astronomical education at all levels in all institutions involved in teaching astronomy in Europe. Contains membership information, the group's history, news, newsletters and projects.

An association founded under the Swiss Civil Code in 1990. Its purpose is to contribute to and promote the advancement of astronomy in Europe.

a non-profit organization dedicated to being a catalyst and information source for all those interested in research and education using relatively small astronomical telescopes.

Member information, meeting announcements, publications and reports, awards, and links to related sites.

Works to maintain the International Celestial Reference System and Frame, and the International Terrestrial Reference System and Frame, and to provide timely and accurate data on the Earth's orientation for current use and long-term studies. Site describes the group's structure and function.