TIL about Planet Nine, a hypothetical ninth planet in the outer region of the Solar System.
TIL about Planet Nine, a hypothetical ninth planet in the outer region of the Solar System.
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.
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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.
Do you put butterflies on your toast?
Free protein!
Okay Jerry
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.
Challenge accepted!
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Yeah, I have a lot of outdated books too.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.
Exactly! Fair enough if you want to define a planet as "anything big enough to be rounded by self-gravity, but too small to undergo fusion in its core." But there is no definition of a planet, (or at least one without an arbitrary rule like "planets have to be X km in diameter,) that allows Pluto to be a planet without Ceres also being a planet.
Pluto for life.