International Astronomical Union (IAU)
Union Astronomique Internationale (UAI)

The IAU was founded in 1919 to provide a forum for the world's astronomers. The Union has approximately 60 member countries, and about 7800 individual members.  It is divided into 11 divisions and 40 commissions. General Assemblies are held every three years, the next being in Manchester, UK, 7-19 August 2000. The IAU is the sole body for assigning designations and names to celestial bodies, and the surface features thereon. Information on the IAU can be obtained from:

IAU-UAI Secretariat, Rm. 318/319, Institut d'Astrophysique
98bis, boulevard Arago, F-75014 Paris, France
Tel: (33) 1 43 25 8358
Fax: (33) 1 43 25 2616

Various Links to IAU endorsed or supported organizations

Links to IAU Commissions Related to the Work of IAU Comm. 22:

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This page is maintained by the current IAU Commission 22 Secretary, Bob Hawkes. Please send comments, corrections, or additions to