What Is Our Ninth Planet?

[ozso]

Sorry, I saw your initial post as serious.

That said, I have seen accusations exactly like that thrown at clearly amateur astronomy channels on YouTube.

It's hard to do a parody of flat earth theory without actually sounding like a believer in flat earth theory.

 

[Shemjaza]

It's hard to do a parody of flat earth theory without actually sounding like a believer in flat earth theory.

There's a reason Poe's Law was invented on this forum.

 

[ozso]

There's a reason Poe's Law was invented on this forum.

That's the stupidest thing I ever read J/K

 

[Kylie]

What is the name of our ninth planet now?

What is this obsession you have?

The object is still called Pluto.

 

[Shemjaza]

What is this obsession you have?

The object is still called Pluto.

I believe it's a numeralogical interpretation of a Biblical passage.

 

[Niels]

Apparently, the effects of gravity and the resulting behaviors of other planetary bodies suggest that there might possibly be a 9th planet. This object or phenomenon is not Pluto. Its orbit would be much farther from the sun. We're already aware of Pluto and its place within the Solar system regardless what we call it now.

Hypothetical Planet X

The existence of Planet X remains theoretical at this point. This hypothetical Neptune-sized planet would circle our Sun far beyond Pluto.

solarsystem.nasa.gov

Speaking of Pluto...

 

[Sabertooth]

Apparently, the effects of gravity and the resulting behaviors of other planetary bodies suggest that there might possibly be a 9th planet.

Here is what I don't understand, since I have been born,...

• Neptune has completed 37% of its orbit (an arc of approx. 133°);
• Uranus, 73% (261°) &
• Saturn, 2.1 times.

I can see how one could detect gravitational variations in the five Jupiter years that I have been alive, but that seems difficult with a sample size of 2 orbits or less.

 

[Astrophile]

Here is what I don't understand, since I have been born,...

• Neptune has completed 37% of its orbit (an arc of approx. 133°);
• Uranus, 73% (261°) &
• Saturn, 2.1 times.

I can see how one could detect gravitational variations in the five Jupiter years that I have been alive, but that seems difficult with a sample size of 2 orbits or less.

The evidence for a ninth planet is a clustering of the orbits of a group of extreme trans-Neptunian objects - Planet Nine - Wikipedia - not perturbations of the orbits of Saturn, Uranus and Neptune. If Planet Nine exists, it orbits around the Sun at a distance between about 300 and 800 astronomical units, between about ten times and 27 times the distance of Neptune from the Sun, and has an orbital period of about 10,000 years.