Definition of planet on August 24
850 2549 (2006) International Astronomical Federation meeting Prague, Czech Republic, consisting of more than 2, astronomer.500 people from 75 countries around the world have approved a new definition of planets is as follows: [1] [2]
1. stars stellar khotronop (which in this case refers to the Sun) but not stellar and not star Steiner
2. There is enough mass, gravity draws itself, are in fact uthok homeostasis or spherical shape similar to
3. There is a clear and orbit corresponds to the planet side
4. Have a diameter of at least 500 miles (804.63 km)
This new definition, Pluto (♇) and e-star Paris, which were counted as planets Sun, at 9 and 10 have been released out of the planets in the solar system, only 8 planets remaining Suns, because Pluto is not able to control gravity. Outside the solar system have orbits that are not consistent with the planet and the side, regarded Pluto as a dwarf planet, which resemble small objects in the solar system:
.
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