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KerikBalm

Sedna Usurped

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Drawing the fence around Planet 9 narrower ... :-)

Edited by Green Baron
how to plant a planet

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Just realized, Sedna was already usurped.... but whatever, its still a cool new discovery, and this survey was not biased. The apparent clustering is greater, and the idea that the apparent clustering is the result of a sampling bias is much weaker.

I still wonder if planet 9 is real, or if the clustering is the result of some transient, relatively massive, visitor from long ago.

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There was a publication where they did the math to find out if a single encounter could have caused the uproar under the KBOs. The outcome was that the probability is terribly low iirc. The study may be linked over in the Plant 9 thread ...

Edited by Green Baron

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So. Astronomers can find 300 kilometers big "breadcrumbs", huh? But where is the whole loaf?

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48 minutes ago, Scotius said:

So. Astronomers can find 300 kilometers big "breadcrumbs", huh? But where is the whole loaf?

Pretty much all of these objects are discovered near their perihelion. If planet 9 is out there, it's going to be much farther away.

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This is not a planet, it is a mother ship to which Oumuamua returns ;-)

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It's suggestive, but not conclusive of Planet 9. Still a neat object, and apparently stable for some amusing solar system configurations. The paper is on ArXiv, and remarkably readable.

14 hours ago, Scotius said:

So. Astronomers can find 300 kilometers big "breadcrumbs", huh? But where is the whole loaf?

There's a decent amount of sky left to search.

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