7mo ago

TIL about Planet Nine, a hypothetical ninth planet in the outer region of the Solar System.

en.wikipedia.org

Planet Nine - Wikipedia

This hypothesized ninth planet (not you, sorry Pluto) might explain the unusual commonalities of extreme trans-Neptunian objects (ETNOs) 100s of AU from the sun. These ETNOs (such as dwarf planets and sednoids) have remarkably aligned orbits, suggest the existence of an undiscovered celestial body, dubbed Planet Nine, influencing them gravitationally.

41 comments

Pluto will always be the ninth planet in my book.
- Even if it’s a dwarf planet, it’s still a planet. It’s right there in the name: dwarf planet.
  This article should be about “Planet 18” since Wikipedia recognizes 17 planets already.
  
  Okay Jerry
  
  Do you put butterflies on your toast?
  
  It's closer to planet 1.4 million if you include the rest of the dwarf parts and minor planets under the same logic. It gets a little hard to remember all the names at that point though.
- I prefer to think of Pluto as the king of the dwarf planets and namesake of the Plutoids, rather than as a weird lesser planet not appreciably bigger than its moon.
  
  I see Pluto and Charon as Irish twins. Or at least 2 under 2. I somehow always imagine two siblings spinning around each other. Maybe Pluto is showing a 🫶 to his little sister.
- Yeah, I have a lot of outdated books too.
  Edit: I guess people don't enjoy book puns?
- It can't be the ninth planet. It literally can't. It's either not a planet, or its the tenth planet.
  
  Everyone forgetting about my boy, Ceres.
- Pluto for life.
Back in my day is was called Planet X. Sad
- Well without Pluto it would be planet 9 not 10
  
  X is so much more than just the Roman numeral.
- I thought Planet X was a hypothetical inner planet?
  
  Nah, it's the same thing. Just renamed to planet nine now.
- I know right. Why do they always have to rename stuff. Isn't there enough new stuff to name?
You hear what they did to Pluto? That’s messed up
Planet Nine from Outer Space
- Probably one of the greatest cinematic masterpieces.
  
  You’ve never seen Kraven the Hunter and it shows.
Nibiru who come around every few thousand years so the ( i think reptilian ) that live on it can harvest our gold ans human for slavery
It's a nice rabbit hole to follow
There's the even more hypothetical and highly theoretical Planet Eleven. It's so obscure there aren't even rumors about it.
- The problem is the potential planet is so far that it would barely reflect any light. We have inferred from computer models that for known planet and object orbits in our neck of the woods, there needs to be a planet there to create those orbits.
  We just can't see it because it's so far out there, it's really really dark, and it doesn't pass in front of a star to see the dimming effect that would let us know it's there. If we knew where to exactly point telescopes, it's possible with enough study we could say it's really there.
- Not a stupid question.
  Beyond the too far to reflect light aspect, the evidence we do have is gravitational effects to other bodies we can see and track. So there is evidence that something is out there. It's just a matter of what and exactly where.
I cant believe they are turning Neptunian objects extremely trans
Get the space platforms ready lads were going to the shattered planet.
- Get your biter eggs on board. We gonna make promethium science.
If you wanna get really tin-foiled about it, Planet X and a dead star beyond the belt
Also confer this very topical article
- Paywall
  
  https://archive.is/wpA9s
- Thanks for sharing that
  
  You're very welcome

41 comments