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submitted 1 week ago by [email protected] to c/whitepeopletwitter
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[-] [email protected] 26 points 1 week ago

Back in my day the only planets we knew of were the ones in our solar system.

[-] [email protected] 20 points 1 week ago

And there were nine of them!

[-] [email protected] 1 points 1 week ago

That's still very much the case. All planets are, by definition, in our solar system. Any planet-like bodies not in our solar system are called exo-planets.

[-] [email protected] 13 points 1 week ago

You make it sound like exoplanets are not planets, but they are, unless you have a recent source that contradicts my education.

[-] [email protected] 6 points 1 week ago

Did you hear about Pluto? That's messed up, right?

[-] [email protected] 5 points 1 week ago

the human named Jerry has something to announce...!

[-] [email protected] 3 points 1 week ago

Not really, no... it's a comet or at best a rogue kuiper belt object. It's smaller than earth's moon, its orbit is wildly elliptical, and it hasnt cleared out its orbital path. Many reasons not to consider it a planet, and so it was dropped.

If Pluto was to be called a planet, then Ceres would also need to be called one, and everyone seems happy with calling that an asteroid.

[-] [email protected] 2 points 1 week ago

Thumbs nose

You know that's right.

this post was submitted on 28 Jun 2024
1673 points (98.2% liked)

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