Acronym for the International Astronomical Union, the organization that brings together astronomers from around the world.

Founded in 1919, it is responsible for coordinating international research, establishing the nomenclature of celestial geography, giving names to new discovered objects, etc.

Of fundamental importance is the service of the so-called astronomical telegrams by the IAU headquarters in Cambridge, Massachusetts (USA), at the Smithsonian Astrophysical Observatory, which immediately informs enrollees of the discovery of nova and supernova stars, of asteroids and comets, allowing immediate observation and verification by interested parties.

The IAU organizes plenary assemblies of all astronomers every three years in various parts of the world.

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Astronomy Glossary: ​​IIcarus (asteroid)