[Utah-astronomy] Re: 10th "planet"?

James Helsby wrote:

Many consider both Pluto and Chiron to be planetoids, and not true planets.

Had Pluto been discovered in the past few years I seriously doubt it would have been classified a planet. At smaller than 2,500 km it's just too small, IMHO, to be considered a major planet. Large asteroid, planetoid, minor planet? Yes. Planet? No. So I'm looking forward to the debate that will ensue should this new discovery turn out to be (even slightly) bigger than Pluto. Patrick