My sun (poor guy) has lost: 2 planets from ejection 3 planets from collisions 1 planet from plunging into the sun 1 planet from declassification Erebus (X) Tartarus (planet 10) Theia Nyx (protoplanet who crashed with Uranus) Phaeton (protoplanet who crashed with Jupiter and formed the asteroid belt) Vulcan Pluto My AU predominantly follows hypothetical planets, or previous hypothetical planets (ahem, Vulcan), but there were a lot so ya. (The names aren’t necessarily real, I just came up with some names in my spare time)
Poor sun he like lost about 4 planets. 1- Theia from collision 2- (Erebus) X from ejection 3- A planet that crashed into Uranus tilting him 4-Vulcan that crashed in him
there are atleast 8 lost planets that crashed into the main planets..- not to mention the dwarf planets.. like plutos collision, haumeas collision, and jupiters gravity basically stopped many planetesimals from forming.. and also many planets probably spiraled into the sun, and beyond