Several astronomers wrote theories of planetary motion. Ptolemy's theories date to antiquity. Copernicus wrote his theories in the early 16th century. Kepler's theories were written in the early 17th century.
Kinetic Theory.
The Bohr model of an atom was of planetary type.
are in random, constant, straight-line motion
Atoms and molecules are constantly in motion
The kinetic theory of matter states that matter is made of particles whose speed is dependent on their mass and temperature. The kinetic theory states that particles in matter are always in motion.
Kepler
Johannes Kepler was born in Germany in 1571 and was a mathematician, astrologer and astronomer. He was best know for his laws of planetary motion which were the foundation for Newton's theory of universal gravitation.
ptolemaic
Copernicus believed the planetary motions were due to:
Isaac newton discovered the three principles of planetary motion
There are numerous theories of planetary motion. Ptolemaeus (earth in the centre), Copernicus (the sun in the centre, planets orbit around it), Kepler (planet orbits are ellipses) all wrote such theories.
Johannes Kepler was the scientist who included three laws of planetary motion as part of his heliocentric theory of the universe. These laws, known as Kepler's Laws of Planetary Motion, describe the orbits of planets around the Sun.
He didn't alter them. He showed that his theory of planetary motion under gravity was consistent with them.
Descartes created the most popular theory on planetary motion. He also contributed to the theories and laws of motion as well as the laws of nature.
Well, seeing as he was a Mathematician and Astronomer, he is closely related to the Solar System. During the Scientific Revolution of the 17th century Johannes Kepler discovered and documented the laws of planetary motion. His studies also laid the groundwork for Isaac Newton's theory of universal gravitation.
There are no fundamental laws behind the Copernican theory. The three laws of planetary motion that we use now were discovered by Johannes Kepler and published in 1609, sixty-six years after Copernicus died. Kepler introduced the new idea of elliptical orbits. The idea that the Sun is at the centre (loosely speaking) was the only part of the Copernican theory that Kepler retained.
The Geometric Theory states that Earth is a motionless planet at the center of the universe while all the other planets, moons, stars, and sun circle around it.