this post was submitted on 14 Apr 2024
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Science Memes

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[–] diverging@lemmy.ml 7 points 6 months ago (1 children)

The stupidest consequence of the definition is not the classification of Pluto, but that there are only eight planets in the entire universe.

a planet is a celestial body that:

  1. is in orbit around the Sun
[–] fossilesque@mander.xyz 0 points 6 months ago (1 children)
[–] diverging@lemmy.ml 12 points 6 months ago

No. I copied and pasted that. The definition says 'the Sun'. There was a proposal to classify 'exoplanets' but the IAU never accepted it, and so those large masses orbiting other stars remain undefined.

Exoplanets are addressed in a 2003 position statement issued by a now-defunct IAU Working Group on Extrasolar Planets. However, this position statement was never proposed as an official IAU resolution and was never voted on by IAU members.