A sednoid is a trans-Neptunian object with a large semi-major axis and a high perihelion, similar to the orbit of the dwarf planet Sedna. The consensus among astronomers is that there are only …

541132 Leleākūhonua (/ ˌlɛleɪɑːˌkuːhoʊˈnuːə /) (provisional designation 2015 TG387) is an extreme trans-Neptunian object and sednoid in the outermost part of the Solar System. It was …

Mar 5, 2024 · Astrobites reports on the possibility that an ancient rogue planet in our solar system is responsible for the orbits of the sednoids.

Discovery image of Sedna, the eponymous, first known sednoid and potential dwarf planet. A sednoid is a trans-Neptunian object with a perihelion well beyond the Kuiper cliff at 47.8 AU.

Nov 6, 2023 · The outermost region of our Solar System is home to a small group of distant objects with orbits that deviate significantly from the rest: Sedna, 2012 VP113, and …

Jan 29, 2016 · If the eight known planets couldn’t have influenced the sednoids, does that mean there’s another planet out there? Could the elusive and controversial Planet X be responsible …

At least nine such bodies have been securely identified, [6] of which the largest, most distant, and best known is Sedna. Those with large semi-major axes and high perihelion orbits similar to …

We examined the past history of the three most detached trans-Neptunian objects (TNOs)—Sedna, 2012 VP 113 , and Leleakuhonua (2015 TG 387 )—the three clearest …

Feb 15, 2024 · Among thousands of discovered TNOs, a tiny subset known as sednoids—characterized by their large semimajor axes (a) and significantly high perihelia …

Jul 1, 2023 · The sednoids are a sub-population of the detached TNOs (which are currently weakly coupled to the scattering induced by the four giant planets). Depending on which …