Mystery object in weird orbit beyond Neptune cannot be explained | New Scientist
https://www.newscientist.com/...00-mystery-object-in-weird-orbit-beyond-neptune-cannot-be-explained/
“I hope everyone has buckled their seatbelts because the outer solar system just got a lot weirder.”
That’s what Michele Bannister, an astronomer at Queens University, Belfast tweeted on Monday.
She was referring to the discovery of a TNO or trans-Neptunian object, something which sits beyond Neptune in the outer solar system.
This one is 160,000 times fainter than Neptune, which means the icy world could be less than 200 kilometres in diameter. It’s currently
above the plane of the solar system and with every passing day, it’s moving upwards – a fact that makes it an oddity.
The TNO orbits in a plane that’s tilted 110 degrees to the plane of the solar system. What’s more, it swings around the sun backwards
unlike most of the other objects in the solar system. With this in mind, the team that discovered the TNO nicknamed it “Niku” after
the Chinese adjective for rebellious.
[1608.01808] Discovery of A New Retrograde Trans-Neptunian Object: Hint of A Common Orbital Plane for Low Semi-Major Axis, High Inclination TNOs and Centaurs
http://arxiv.org/abs/1608.01808