Talk:Planet X

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This should really be merged with Niburu[edit]

They're never treated as separate by cranks, afaik. Reverend Black Percy (talk) 04:20, 10 February 2017 (UTC)

Except now there's a real candidate planet X. ikanreed You probably didn't deserve that 04:53, 10 February 2017 (UTC)
So we merge and add a hanote: not to be confused with the real candidate Planet X. I mean, come on, Planet X is an established crank term at this point. We're not encyclopedic, we cover crankery. S'fine. Reverend Black Percy (talk) 04:55, 10 February 2017 (UTC)
As long as I don't have to do the difficult work of making the combined article then. ikanreed You probably didn't deserve that 04:59, 10 February 2017 (UTC)
No, I'll prolly be the one to mash'em together like two action figures simulating coitus... Reverend Black Percy (talk) 05:08, 10 February 2017 (UTC)


RW sets up a crowd sourcing fund to name two Oort Cloud entities 'Planet X' and 'Nibiru'. The cranks thus have the (solar) wind taken out of their collective sails. (talk) 21:54, 16 June 2017 (UTC)

I would be surprised if that hasn't already been done, to be honest. XD Though probably more for asteroids or Kuiper Belt Objects, since I don't think we have many examples of actual Oort Cloud things yet. -- Onychoprion (talk) 21:57, 16 June 2017 (UTC)
Doesn't appear to be so - get eg [1] and [2] (The 'Fallen Madonna with the Big Boobies' is more legitimate than either of these.)
Perhaps the idea could be suggested to NASA/the International Astronomical Union (who would be the most relevant authorities).
I doubt cranks would like to see that Nibiru is just a tiny block of ice with the size of a very large city, but it would be hilarious--Panzerfaust (talk) 22:03, 17 June 2017 (UTC)
Long live Nibiru McPlanetXface! (talk) 21:41, 17 June 2017 (UTC)
The relevant links are [3]/[4]. How often are 'a major international body' and Rationalwiki in total alignment? Anna Livia (talk) 15:44, 10 November 2017 (UTC)

The real story[edit]

... can be found here. (Slightly more plausible than many such claims.) (talk) 16:45, 3 May 2018 (UTC)

Another planetary hype magnet[edit]

Can be found here. Anna Livia (talk) 20:23, 5 August 2018 (UTC) Perhaps there could be a little (funspace) list:

Will add Ultima Thule [5] to the above.

Perhaps there could be 'a little list' of all actually existing things which are not Planet X, including 'Oumuamua and the Voyagers and the heliopause [6], to keep track of such possible subjects of claims. Anna Livia (talk) 23:48, 30 December 2018 (UTC)

Will add [7] to the list; [8] will serve for Ultima Thule Anna Livia (talk) 16:32, 4 September 2023 (UTC)

What about this?[edit]

The source for the "dead star" is likely Tom Van Flandern in "Does Our Sun Have a Dark Companion?" (Newsweek, 28 June 1982). He estimates it to be a black hole or neutron star, which cannot be detected (and hence ruled out) by WISE due to emitting mostly X-rays and gamma rays. The source for the "tenth planet" is unknown.

Joseph D. Pelobello/Daniel William "Danny" Willson 20:00, 26 April 2021 (UTC)

I'm not entirely sure what that picture is trying to say, but anything emitting mostly X-rays and gamma rays would also be emitting a lot of infrared radiation. WISE failed to detect a lot of stuff in the Kuiper Belt because it was too cold, not too hot. EyeSky (talk) 20:20, 26 April 2021 (UTC)
But hot objects, like a neutron star, are supposed to emit far more X-rays and gamma rays than infrared radiation, which is probably why WISE (which detects infrared) missed the dead star. And Kuiper Belt objects are too small in surface area. It's also possible that the tenth planet is Eris, but Eris would have been in a different position (Cetus) than predicted by the image (~Taurus/Gemini). I prefer those hypothetical bodies over Planet Nine, and want to name the tenth planet Rupert and the dead star Danny. Joseph D. Pelobello/Daniel William "Danny" Willson 06:38, 2 May 2021 (UTC)
They will emit more high energy radiation, but they will also emit more infrared radiation than colder objects, because they are approximate black bodies. If the high energy radiation were so intense as to interfere, the interference with WISE would be noted. See Planck’s law. EyeSky (talk) 13:57, 2 May 2021 (UTC)


My usual source of odd stories came up with [9] Anna Livia (talk) 10:16, 17 October 2023 (UTC)