Kenneth Chang

4/ So even though the community had decided in the 1960s that small bodies are not planets, we never forged a broad consensus on what the exact size limit is. We are *NOW* arguing (since ~2004?) that geological rounding is the size limit that is most taxonomically useful.

5/ The lower size limit issue has been percolating a long time. Even in the 1880s at least one highly respected astronomer was arguing that very small satellites like Mars’ moons should not be considered planets (while the larger moons should still be planets).

6/ It is *supposed* to be slow like this. Science is best when we argue over data and hold off making decisions until the data are overwhelmingly clear. This is why the vote in 2006 was so wrong. It cut off the real value of taxonomy in the scientific process.

Eris had been discovered. What were you going to tell people? "We don't know how many planets there are or even what a planet is. We'll get back to you in a decade."

In the late 90s, early 2000s (Marsden attempting to give Pluto a minor planet #, the AMNH leaving out Pluto in its exhibit), I never once heard anyone say, "We should make a Ceres a planet again. We got that one wrong."

Simply Incorrect. I did. So did others Ken.

I'm saying no one ever said that to me, which is unequivocally true. Please show me a news article of the time that quotes someone saying that. I heard much more about the injustice of demoting Pluto because it was discovered by an American.