I'm actually happy with the 8 planet solar system; to me it makes sense. You've got the inner 4 terrestrial plants followed by the outer 4 gas planets. Pluto should never have been awarded the status of a planet; compared with the other 8 its orbit has is highly elliptical and well outside the plane of the ecliptic, it?s just too messy?
The splitting of the planets into the ?classical eight? and the 'dwarf planets? simplifies the whole matter. I'm sure I read that there are potentially 40+ other celestial bodies which could, with further research, be classified as ?dwarf planets?. In schools we will be able to teach about the big 8; then mention Ceres along with the asteroid belt; discuss the Kuiper Belt with the bi-planetary system of Pluto and Charon, 2003 UB313, and the others such as Sedna, Quaoar, and 2005 FY9.
It amuses me when people say things like: ?Long ago I learned it was a planet and I see no reason to unlearn it. Why should I??? Well, err, that?s how science works; we research, we discover, we learn. To be fair, the redefining of the planets is of no great concern to many people,especially scientists. Why kick up a fuss? Learn it, write I down in your exam paper, then stow it away in the grey matter for the occasional pub quiz ? there are far more things to get worked up about. 0_o
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