Sedna: oh look it's a new dwarf planet!

Eris: hello there little fellow! Would you like to join our mini solar system?

Pluto: don't worry planet 9 is a cool guy!

Makemake: come on join us you must be cold! Let planet 9 warm you up.

Haumea: go ahead join us Bro!

Brown dwarf Star planet 9: hello there new visitor! Am planet 9 the brown dwarf star! I can provide you with heat and light and you might be able to have habitable conditions like everyone else.