Good bye, Pluto... nice to know you as a planet...
Pluto gets the boot
The IAU therefore resolves that planets and other bodies in our Solar System be defined into three distinct categories in the following way:
(1) A classical planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.
(2) A dwarf planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, (c) has not cleared the neighbourhood around its orbit, and (d) is not a satellite.
(3) All other objects orbiting the Sun shall be referred to collectively as "Small Solar System Bodies".
The second resolution, the one that demoted Pluto offcially reads:
The IAU further resolves:
Pluto is a dwarf planet by the above definition and is recognized as the prototype of a new category of trans-Neptunian objects. This category is to be called "plutonian objects."
With these resolutions, there are now the eight classical planets. In addition to these eight, there are (currently) four dwarf planets including Pluto, Charon, Ceres, and 2003 UB313 (a.k.a. Xena), bringing the total number of planets (classical and dwarf) to twelve. This new definition also leaves open the possibility
for even more known celestial bodies to become dwarf planets, leading contenders at this point are the asteroids Pallas, Vesta, and Hygeia.
2008
2005- Time is just passing...
2004- Confirmed: Amazing Race 6 was in Chicago
2003- White Sox 0 - Rangers 5
2002- Bobbing in the pool