If this 800-mile diameter icy-world isn't a planet, then....
...may I suggest that a new designation be given it: PLANETTE.
Pluto is still a "planet",
of course....
I'll still call it a PLANET...Unless
Raoul tortures me with bamboo-sticks up my fingernails, then, in that case, I might be forced to call both Pluto [and that 'newly' discovered whatsitsname?] "asteroids" [HEAVEN FORBID!].
Ahhh, yes! Don't ask me to spell...
whatitsname?...I forgot the name already.
Jacob