this post was submitted on 27 Dec 2024
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[–] Klear@sh.itjust.works 8 points 1 year ago (1 children)

Ceres is the issue. People are pissed that they learnt the list of planets and now it's different, but don't realise the only viable options were to either drop the last one or add a bunch of them, some right in the middle.

[–] lunarul@lemmy.world 7 points 1 year ago (2 children)

And if Ceres is a planet, shouldn't Eris be one too?

[–] Klear@sh.itjust.works 4 points 1 year ago

Exactly. It would get real messy.

[–] humanspiral@lemmy.ca 3 points 1 year ago (3 children)

What is argument for Ceres and Eris being planets?

[–] rockerface@lemm.ee 2 points 1 year ago

The same as for Pluto

[–] deadbeef79000@lemmy.nz 2 points 1 year ago

Hydrostatic equilibrium. Their gravity is enough to pull their mass into a sphere-ish shape.

Contrast to asteroids that are irregular.

[–] lunarul@lemmy.world 1 points 1 year ago

Large round bodies orbiting the sun.