It stands for International Astronomical Union.
IAU stands for the International Astronomical Union, an organization that is responsible for promoting and coordinating the international collaboration in astronomical research. It is also responsible for assigning official names to celestial bodies and features.
IAU Circular was created in 1920.
IAU decided this because it shrinks every 10 seconds
1919
Thursday is Dydd Iau in Welsh i no because I'm welsh
How many constellations have been formally named by the IAU and lies in which hemisphere
You've essentially just asked "is there a known planet no one knows about". The answer should be self-evident. The chances that the IAU could keep a planet a secret from everyone else are, essentially, zero.
Mars is regarded as the fourth planet by the IAU.
IAU
IAU
Mars is regarded as the fourth planet by the IAU.
IAU