Scientists say that Pluto is not a planet.

As I have stated in the comment section, the title of this topic may seem confusing. "Scientists say that Pluto is not a planet" would mean that as PRO, I would have to show Scientist who DO say Pluto is a planet. This of course is not a controversy but a fact. What is evident is that my opponent meant to say that Pluto should be considered a planet, despite what the consensus is right now. I hope my opponent and the voters agree with me on this conclusion. Stemming from that, my arguments! ~Arguments~ 1. Clear cut definintion of "planet" In 2006, the International Astronomical Union (IAU) finally released criterias for what is considered to be a planet [1]. The new classification of a planet is: "A 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. " In planet formation, "cleared the neighbourhood" is for planets who have their own orbital zone, with no other comparable bodiez that have a gravitational influence, except satellites [2]. Pluto did NOT meet the third requirement because it was only 0.07 times that of the mass of the other objects in its orbit, and thus was classified as a dwarf planet [3]. A dwarf planet basically is a planet that does not meet requirement 3. ~Counterarguments~ "It can be seen through an average telescope, has a regular orbit around the our star, and has two small moons. I think that this is enough to be a planet. " ----> With the new IAU definition, it should be safe to say that NO, that is not enough for a celestial body to be called a planet. "Some people say that ï¿½planet Xï¿½ is more important than Pluto. ï¿½Planet Xï¿½ may be bigger, and have more moons, but its not even properly named yet! Its been known as, first, C. O. T, then Planet X, for two years! And, its not even in our solar system! It does not orbit a star, just floats in the void on the edge of out solar system, caught in its gravity but not moving. I do not see, other than size, any reason for Pluto to not be a planet. " ----> Planet X means planets beyond Neptune. When unforseen gravitational influences were affecting Neptune, this led astronomers to believe that there was another planet beyond Neptune [4]. When Pluto was found, it was originally named as Planet X. However, later calculations showed that the mass of Pluto was not sufficient enough to cause the unknown gravitational influences upon Neptune, and thus Pluto eventually lost it's title as Planet X [5]. Finally, recalculations were done on Neptune, and it was found that it's mass was slightly different than was calculated before. Subsequently, the unknown gravitational forces were accounted for, and thus the overarching consensus in the astronomical community is that there is no Planet X[6]. ~Conclusion~ I have adequately shown why Pluto is not a planet anymore under the IAU criteria's, as well as disproving my opponent's argument involving Planet X. ---References--- 1. . http://www.iau.org... 2. . http://en.wikipedia.org... 3. . http://en.wikipedia.org... 4. . http://en.wikipedia.org... 5. . http://en.wikipedia.org... 6. . http://en.wikipedia.org...