IAU stands for International Astronomical Union
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According to those who do not accept the IAU's judgement on such matters - and no one is required to - Pluto. While Pluto was declared by the IAU to no longer be a planet, many disagreed. They had - and have - that right.
According to those who do not accept the IAU's judgement on such matters - and no one is required to - Pluto. While Pluto was declared by the IAU to no longer be a planet, many disagreed. They had - and have - that right.
It stands for International Astronomical Union.
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.
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Mars is regarded as the fourth planet by the IAU.
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