International Astronomy Union

The International Astronomical Union (IAU) is a global organization of professional astronomers that sets standards and guidelines for naming and classifying celestial bodies like stars, planets, and asteroids. It promotes international collaboration, research, and the advancement of astronomy. When new planets or features are discovered, the IAU officially approves their names and definitions, ensuring consistency and clarity in astronomical terminology worldwide. Founded in 1919, it plays a key role in coordinating astronomical science and fostering international cooperation for understanding the universe.