A hypothesis is proposed to explain the anomalous clustering of the orbits of trans-Neptunian objects (TNOs) by the comet-like orbit of Planet 9 with an aphelion of ~500 AU and a semi-major axis of ~250 AU.

Passing through the Kuiper Belt, Planet 9 chaotically interacts with TNOs, leading to alignment, anti-alignment, and scattering and a decrease in the period of their orbits. But at the same time, alignment creates a closer interaction, which ultimately accelerates scattering.

Thus, TNOs whose arguments of perihelion as a result of scattering are grouped in an area at ~180° opposite to Planet 9 have more stable orbits due to a shorter interaction time. And the most stable orbits of TNOs are those located closer to its perihelion, reaching the region of the planets of the Solar System.

This is confirmed by improvised computer modeling in Sace Flight Simulator. Unfortunately, you can't see all the orbits at once, but some stages of evolution are screened separately. TNOs are initially given arbitrary circular orbits, then they become elliptical and disperse. Due to the limitations of the model, the dispersed objects exceed the escape velocity, but under certain conditions this would lead to the appearance of very elongated orbits.

Based on observations, it was assumed that the period of Planet 9 does not exceed the minimum for extreme TNOs of 4274 (2012 VP113), which can be formed as a result of alignment or anti-alignment.

In the image, the orbits of the UTOs are aligned in the plane of the ecliptic coordinate system. For Planet 9, the perihelion longitude is set at 146°, in accordance with the maximum value of 138+-8° (anti-alignment with the common argument of perihelion for clusters of 318+-8°) in the hypothesis of M. Brown and K. Batygin. This ensures the overlap of all orbits.

Such a comet-like orbit is explained by the fact that Planet 9 may be a rogue planet, attracted by the Solar System in the distant past and influencing its evolution.

Edited June 7, 2025Jun 7 by MasterOgon

I really like the title of this post.😄

2 hours ago, Bufofrog said:

I really like the title of this post.😄

TheVat suggested it in another thread

4 hours ago, Bufofrog said:

I really like the title of this post.😄

In a some way it reflects the essence

I have previously tried to find out whether there is evidence or observations that the Planet Nine discussed here, in a very elongated orbit, can periodically approach the Earth. It's not like I found any convincing evidence, but here's what I came up. I added the paper, it's very long. Abstract:

A model of Planet Nine as a massive body (3–4 M⊕) in a highly eccentric retrograde orbit (e ≈ 0.994–0.996, q ≈ 1 AU, Q ≈ 400–500 AU, T ≈ 3600 yr), presumably captured from interstellar space. The model relies on the clustering of ETNO orbits by dynamic traps and chaotic diffusion, the instability of their configurations, and the millennial scale. It also shows quasi- periodicity in climatic and cultural-historical markers (the Younger Dryas event, the Piora oscillation) consistent with a period of T ≈ 3600 yr. A historically confirmed possible observation of Planet Nine’s perihelion passage of 1 AU has been established, supported by the exploratory LLM reconstruction of the comet’s orbit observed in CE 60 for 180 days and documented in Chinese chronicles.

Planet9-1AU.pdf

This is interesting but nowhere near as good as 'Plan 9 From Outer Space', the 1957 movie with B Lugosi and directed by E Wood.

3 hours ago, MigL said:

This is interesting but nowhere near as good as 'Plan 9 From Outer Space', the 1957 movie with B Lugosi and directed by E Wood.

Isn’t that the one where he died during filming and they also used footage with an actor of much different height?

I was under the impression E Wood used footage of B Lugosi from another unfinished film after the actor's death.

"It also posthumously bills Bela Lugosi (before Lugosi's death in August 1956, Wood had shot silent footage of Lugosi for another, unfinished film, which was inserted into Plan 9"

Plan 9 from Outer Space - Wikipedia

I’m going by a memory from the story told before seeing it in college, ~45 years ago, at an annual “bad films” showing before Halloween