Science/Astronomy/Associations

Science / Astronomy / Associations /

Astronomical associations and societies. Genuinely amateur astronomy groups and clubs are listed in Science/Astronomy/Amateur/Organizations/.

Sub Categories

Related Categories

Ranked Sites

Utah Skies

Information useful and interesting to amateur astronomers, especially those located in Utah. Includes events, news, data and reference materials, and a weekly viewing conditions forecast. Has a special section about light pollution.

4
792,007
NA
36,400
9,010
528

American Astronomical Society (AAS)

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

8
467,168
NA
37,100,000
30,700
145

The International Astronomical Union (IAU)

Founded in 1919, has a mission to promote and safeguard the science of astronomy through international cooperation. The organization is also the internationally recognized authority for assigning designations to celestial bodies and surface features on ...

8
537,711
NA
19,100,000
49,700
641

International Occultation Timing Association (IOTA)

Established to encourage and facilitate the observation of occultations and eclipses. It provides predictions for grazing occultations of stars by the moon and predictions for occultations of stars by asteroids and planets, information on observing ...

6
2,156,419
NA
467,000
75
3

The Astronomical League

Composed of over two hundred local amateur astronomical societies from across the United States. Information on national conventions (ALCons), member societies, regions, Atronomy Day, and awards.

6
475,377
NA
41,300
12,700
372

American Association Of Variable Star Observers (AAVSO)

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

7
399,772
NA
663,000
18,300
332

The Planetary Society

A nonprofit organization that promotes exploration of the solar system and the search for extraterrestrial intelligence.

7
177,130
1,303
41,400,000
101,000
77

The Astronomical Society of South Australia

Founded in 1892, is the oldest society of its kind in Australia. Its objectives are to promote the Science of Astronomy and all its branches by holding regular meetings and viewing nights, circulating current astronomical ...