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1st Law of Planetary Motion
In the year 1605 Kepler announced his First Law of Planetary Motion. Tycho Brahe, a Danish astronomer, assigned Kepler the task to analyze the observations he had made of the predicted position of Mars. Tycho’s data aided Kepler to show that Mars’ orbit would precisely fit an ellipse. These findings led Kepler to announce his first law, “Planets move in ellipses with the Sun at one focus.” -
Astronomia Nova Published
In the year 1609, Kepler published his book, Astronomia Nova. This book introduced the first 2 of Kepler’s 3 laws. Kepler had already established his 1st law in 1605 but established his second law in Astronomia Nova. This law states, that a line connecting any planet to the Sun sweeps out area at a constant rate. Meaning, that a planet moves faster when near the Sun and slower when farther away from the Sun. -
Stereometria Dolorium Published
In 1615, Kepler published his book Stereometria Doliorum. This book gave us the basis for what is now integral calculus. This book demonstrates the calculation of areas and volumes by infinitesimal techniques. Kepler based his work building off od the results Archimedes had found. The book focuses the calculations of the exact or approximate volumes of over 90 solids. -
Kepler's 3rd law of Planetary Motion
https://www.youtube.com/watch?v=AKbfR5KHUm4
In 1618 Kepler announced his third law of planetary motion. In 1619 he published the law in his Harmonicus Mundi. The law states the squares of the periodic times are to each other as cubes of the mean distances. This law served as a basis for Isaac Newton to develop his Law of Gravitation in the future.
