Prof. Sam Lawler on Nostr: Y. Huang: 3 most distant Sednoids (Sedna, 2012VP113 a.k.a. Biden, Leleakuhonua). ...
Y. Huang: 3 most distant Sednoids (Sedna, 2012VP113 a.k.a. Biden, Leleakuhonua). Experience weak Galactic tides, weak scattering from planets, now orbital evolution is only precession - winding back in time, they all match up 4 Gyr ago. (Notes this is not the same thing as the current Planet 9 "clustering")
This "primordial clustering" is incompatible with Planet 9. Suggests: early rogue planet or stellar flyby. Only rogue planet theory creates aligned orbits. COOL.
#DPS2023
Published at
2023-10-03 14:49:58Event JSON
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