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submitted 1 year ago by [email protected] to c/[email protected]

Caltech researchers have found evidence of a giant planet tracing a bizarre, highly elongated orbit in the outer solar system. The object, which the researchers have nicknamed Planet Nine, has a mass about 10 times that of Earth and orbits about 20 times farther from the sun on average than does Neptune (which orbits the sun at an average distance of 2.8 billion miles). In fact, it would take this new planet between 10,000 and 20,000 years to make just one full orbit around the sun.

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[-] [email protected] 32 points 1 year ago

This is an old article. It references the Batygin and Brown paper from 2016. As of 2024, it is still considered possible, but no direct evidence has been observed, and alternative explanations have been proposed, according to Wikipedia.

[-] [email protected] 3 points 1 year ago* (last edited 1 year ago)

Things are looking pretty grim for planet nine, it’s running out of places to hide. It was a cool hypothesis and a gutsy prediction, but I’m afraid that it’s not going to work out.

[-] [email protected] 3 points 1 year ago

Won’t the Vera Rubin Telescope (formerly LSST) settle this? It’s going to observe the entire night sky every few nights and provide enough data to find nearby moving objects.

[-] [email protected] 3 points 1 year ago

This paper seems to be dated 18 April, 2024. Wouldn't surprise me if its some sort of re-print, but otherwise would explain why this topic popped up in the media over the last few days. https://arxiv.org/pdf/2404.11594.pdf

[-] [email protected] 13 points 1 year ago

This hypothetical planet was cooler when it was called "Planet X."

[-] [email protected] 6 points 1 year ago

Is this the one they've decided exists and then narrow down the parameters as what it must look like every time a survey rules out another patch of sky?

[-] [email protected] 3 points 1 year ago

It'd be cool to see direct evidence of it.

[-] [email protected] 3 points 1 year ago

Petition to name it Xluto

[-] [email protected] 1 points 1 year ago

Home of the Lectroids.

[-] [email protected] 1 points 1 year ago

So they found Nibiru

this post was submitted on 20 Apr 2024
33 points (86.7% liked)

Astronomy

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