Solar System

By Ellisd
  • Jan 1, 1572

    Kelper's Discovery

    1572-1630
    1. Orbits are elliptical, Sun at one focus, nothing at other.2. Radius vector sweeps out equal areas in equal times.3. Square of period proportional to cube of distance.

  • The Discovery of Gravity and Inertia

    Isaac Newton Published a book called “Philosophiae Naturalis Principia Mathematica” and featured his work on the law of gravity within it.

  • The Discovery of The Inner Planets

    They are all terrestrial planets, are solid, are dense, are small, the atmosphere is thin, the exterior is warm, and there are no ring systems.

  • The Discovery of The Gas Giant Planets

    They are gas planets, are not dense, the atmosphere is deep and thick, the experior is cold and there are ring systems.

  • The Discovery of Pluto

    Pluto is different from the other planets because it rotates in a different direction than from other planets. Pluto is a dwarf planet, but is no longer classified as a planet in our solar system.