Night Sky Live (Popularity: )

A network of volunteers have cameras focused on the sky to create a 360 degree ...

The Webb Society (Popularity: )

An international society of amateur and professional astronomers specialising in the observation of double stars ...

Antique Telescope Society (Popularity: )

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

Global Network of Astronomical Telescopes (GNAT) (Popularity: )

a non-profit organization dedicated to being a catalyst and information source for all those interested ...

The International Astronomical Union (IAU) (Popularity: )

Founded in 1919, has a mission to promote and safeguard the science of astronomy through ...

International Occultation Timing Association (IOTA) (Popularity: )

was established to encourage and facilitate the observation of occultations and eclipses. It provides predictions ...

American Association Of Variable Star Observers (AAVSO) (Popularity: )

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

Association of Lunar & Planetary Observers (Popularity: )

Founded in 1919, has a mission to promote and safeguard the science of astronomy through ...

European Astronomical Society (EAS) (Popularity: )

An association founded under the Swiss Civil Code in 1990. Its purpose is to contribute ...

International Earth Rotation Service (IERS) (Popularity: )

Works to maintain the International Celestial Reference System and Frame, and the International Terrestrial Reference ...

Utah Skies (Popularity: )

A very comprehensive collection of information useful and interesting to amateur astronomers, especially those located ...

The Astronomical Society of South Australia (Popularity: )

founded in 1892, is the oldest society of its kind in Australia. Its objectives are ...

Joint Organization for Solar Observations (JOSO) (Popularity: )

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

International Organisations for Archaeoastronomy / Cultural Astronomy (Popularity: )

An association founded under the Swiss Civil Code in 1990. Its purpose is to contribute ...

American Astronomical Society (AAS) (Popularity: )

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

The Astronomical League (Popularity: )

is composed of over two hundred local amateur astronomical societies from all across the United ...

Royal Astronomical Society of Canada (Popularity: )

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

Euro-Asian Astronomical Society (Popularity: )

Maintains the development of astronomy and reinforces scientific contacts between astronomers of the former Soviet ...

International Occultation Timing Association - European Section (IOTA/ES) (Popularity: )

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

European Association for Astronomy Education (Popularity: )

Improves and promotes astronomical education at all levels in all institutions involved in teaching astronomy ...