..as Pluto loses its status as a planetA planet is now defined as 'a celestial body that is in orbit around the sun, has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a nearly round shape, and has cleared the neighborhood around its orbit'
Pluto failed on the final hurdle as its odd
eliptical oblong orbit crosses the orbit of Neptune.
It's probably tidier this way, as the prior proposed definition would have dramaticly increased the number of planets, including the asteroid Ceres near Mars, plus UB313 ('Xena') and others.
On the bright side, it also pisses off the astrologers - you need to rethink your hokum, chaps.