Use international astronomical union iau in a sentence | international astronomical union iau definition

Use "international astronomical union iau" in a sentence

1. The International Astronomical Union (IAU) was founded in 1919

2. In 1929, the International Astronomical Union (IAU) officially defined 88 Constellations across the sky

3. 2006 – The International Astronomical Union (IAU) redefines the term "planet" such that Pluto is now considered a dwarf planet.

4. When the spacecraft was launched, Pluto was still classified as a planet, later to be reclassified as a dwarf planet by the International Astronomical Union (IAU).