A network of volunteers have cameras focused on the sky to create a 360 degree map of the planets and stars at one time. Data is fed into a computer and filtered for atmospheric interference. Page includes details of the procedure, as well as a discussion forum.

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

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.

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.

Promotes international interdisciplinary programs in solar-terrestrial physics, and organizes and coordinates such programs. Site has a newsletter, meetings and events, member directory, announcements, and links to related groups.

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

Facilitates collaboration in solar phvsics among European solar astronomers. Contains details about JOSO's aims, structure, meetings and working groups.

Key activities include research and observing planets, stars, celestial phenomena and the abatement of light pollution.

An international society of amateur and professional astronomers specialising in the observation of double stars and 'deep sky' objects, founded in 1967.