The discussion for this assessment is to explain, “Why was Pluto demoted to a dwarf planet?”
While searching for another planet to explain irregularities in Neptune’s orbit, Pluto was discovered in 1930 by astronomers. At that time, the astronomers gave Pluto very little consideration due to its size, about the size of earth, and way too small to have any affect in altering Neptune’s orbit. As time passed, and technology improved, the size of Pluto was reexamined through improved satellite images, and found to be less than half of Earth’s diameter. Most recently, calculations established on images obtained by the Hubble Space Telescope, show that Pluto’s about one- fifth the diameter of earth and half that of Mercury (considered the runt of
While searching for another planet to explain irregularities in Neptune’s orbit, Pluto was discovered in 1930 by astronomers. At that time, the astronomers gave Pluto very little consideration due to its size, about the size of earth, and way too small to have any affect in altering Neptune’s orbit. As time passed, and technology improved, the size of Pluto was reexamined through improved satellite images, and found to be less than half of Earth’s diameter. Most recently, calculations established on images obtained by the Hubble Space Telescope, show that Pluto’s about one- fifth the diameter of earth and half that of Mercury (considered the runt of