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 

 Woohoo! Shout-out to my current survey CLASSY!  Will help to find more of these Sednoids (I hope I hope I hope) and could help to confirm this theory.
#DPS2023 

 [Hahaha my PhD supervisor just asked a nasty question about observation biases to one of the speakers that I KNEW HE WOULD ASK] 

 Now time to run through my talk a couple of times and see if I really *can* fit 17 slides into 7 minutes and actually get my science across... 

 @e38e83a6 Did someone trick you into a PechaKucha session? 

 @e38e83a6 I'm interested in this in combination with the discussion yesterday of lots of rogue Jupiter-mass objects flying around Trapezium. 

 @d4d08813 Ooooo very good point!