, it made no sense to consider Ceres akin to other planets
ehhhhhhhhh they could have decided that planets were any body not orbitting another body that was massive enough to form a spherical shape under it's own gravity. The definition of planet is totally arbitrary and the only reason they changed Pluto's designation is that they figured it would be less of a problem to have seven planets than to have forty or fifty.
ehhhhhhhhh they could have decided that planets were any body not orbitting another body that was massive enough to form a spherical shape under it's own gravity. The definition of planet is totally arbitrary and the only reason they changed Pluto's designation is that they figured it would be less of a problem to have seven planets than to have forty or fifty.