Neptune, the eighth planet from the Sun, is invisible to the naked eye. It is located some two thousand seven hundred and ninety-three million miles form the Sun. A single orbit around the Sun takes one hundred and sixty-five yeas to complete. This planet only receives one nine-hundredth of the heat and Sunlight as the earth.
Pluto was the ninth planet from the Sun. The name Pluto comes from the Roman God who was the ruler of the under world. On Thursday, August 24, 2006, however, the International Astronomical Union met in Prague voted finalizing the guidelines of planetary classification, thus reorganizing Pluto into a new category of dwarf planet .
Pluto is located three thousand six hundred and seventy million miles form the Sun. It orbits the Sun in total darkness, and is about the same size as Mars and has a diameter two thirds that of Earth s moon. Due to the distance and size of Pluto, it can only be seen with the use of a twenty-inch telescope.
Pluto disqualified due to its eccentric orbit that crosses with Neptune. In addition to the fact that it is disproportionately smaller than any of its former counterparts in the solar system, it does not qualify as a planet. Otherwise, we might as well qualify Pluto s moon, Charon as a planet, thus making Pluto and Charon a binary planet system.
1. If we are to travel from one end of the galaxy circle to the other at the speed of light, it would take us fifty thousand light years.
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