what was its objective?
Its main objective is to promote and safeguard the science of astronomy in all its aspects through international cooperation.
International Astronomical Union
 Its main objective is to promote and safeguard the science of astronomy in all its aspects through international cooperation.
in 1930 what name was not on the short-list of potential names for the planet pluto "Zeus" who discovered it initially? Percival Lowell when was it? March 19 and April 7, 1915 how is it classified? Dwarf planet or Minor Planet what is iau? The International Astronomical Union how does it categorize the aforesaid planet? As a dwarf planet when was this union formed? 28 July 1919
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International Astronomical Union [SEP] Introduction
The International Astronomical Union (IAU; , UAI) is an international association of professional astronomers, at the PhD level and beyond, active in professional research and education in astronomy. Among other activities, it acts as the recognized authority for assigning designations and names to celestial bodies (stars, planets, asteroids, etc.) and any surface features on them. The IAU is a member of the International Science Council (ISC). Its main objective is to promote and safeguard the science of astronomy in all its aspects through international cooperation. The IAU maintains friendly relations with organizations that include amateur astronomers in their membership. The IAU has its head office on the second floor of the "Institut d'Astrophysique de Paris" in the 14th arrondissement of Paris.