Is there any reason to think a Trans-Neptunian dwarf planet, the size of Pluto, could not exist in a Keplerian orbit 120AU from the Sun?

If such an object existed, and came within 0.1AU of the heliopause, is there anything about the environment near the heliopause that would prevent a stable orbit.

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    $\begingroup$ When you say “exist”, do you mean in orbit or just passing by? Is there a reason you’re so precise about proximity to the heliopause? What definition of Dwarf Planet are you using? It might be worthwhile if you edit your question to add some detail. :-) $\endgroup$ – Chappo Hasn't Forgotten Monica May 29 '19 at 1:21
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    $\begingroup$ The reason for your question doesn't make it invalid here, but the lack of clarity might. To make it a fitting question for our site, why not be more direct and ask whether the nature of the heliopause makes a stable orbit impossible, and if not impossible, is it plausible that a large body like Pluto could form that far out. $\endgroup$ – Chappo Hasn't Forgotten Monica May 29 '19 at 1:46
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    $\begingroup$ There is a [reality-check] tag in worldbuilding that you use to stipulate that you want answers on whether or not something could exist/function in real life. There are some very knowledgeable people on worldbuilding, and the userbase sees much overlap with physics/astronomy/maths etc. So yeah, worldbuilding is very much the place. $\endgroup$ – Ingolifs May 30 '19 at 1:03
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    $\begingroup$ @mistertribs that sounds a little bit like punitive closing. The OP is probably asking in good faith. I think the question and the answer can both be refined a little bit without any need to close it down. $\endgroup$ – uhoh Jun 2 '19 at 15:34
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    $\begingroup$ @mistertribs Reading the question; it looks perfectly clear to me. Talk about what is or isn't "in another users head" is unproductive and incompatible with Stack Exchange. I think your answer is quite helpful and I'm the one who up voted it. I think the thing about being within 0.1 or 0.01 AU is overblown. Not everyone who asks a question about the heliopause comes in with knowledge of its exact shape. I don't think it's "grounds for closure" but instead it's an opportunity for learning. $\endgroup$ – uhoh Jun 2 '19 at 22:29

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