What happened to the 2017 proposal on redefining planethood? Is this information available? In 2017, Alan Stern et al. submitted a geophysical planet definition to the IAU for review which states
“A planet is a sub-stellar mass body that has never undergone nuclear fusion and that has sufficient self-gravitation to assume a spheroidal shape adequately described by a triaxial ellipsoid regardless of its orbital parameters.”
Obviously, the IAU didn't accept it (as yet) but does anyone know what exactly the IAU stated about the draft and whether it is still being debated or entirely discarded etc.?
I'm just asking if it is possible to know the IAU's reaction. While users may have opinions on how reasonable the proposal is or isn't, please don't post opinions as answers.
In the linked article by A. Bouchard and another by J. Daley,
the words &quot;in the journal Lunar and Planetary Science&quot; link not to a journal article
but to a poster in a K-12 education session
at the 2017 Lunar and Planetary Science Conference.
First author Kirby Runyon told Universe Today in 2017 that he would not submit this geophysical definition to the IAU process:

We in the planetary science field don’t need the IAU definition...
If [the geophysical definition] is the definition that people use and what teachers teach, it will become the de facto definition, regardless of how the IAU votes in Prague.

It was not presented at the 2018 IAU General Assembly in Vienna.
I don't know where Bouchard got &quot;has been submitted to the IAU for review.&quot;