ASTR 101 Lecture Notes - Lecture 4: Heliocentrism, Geocentric Model, Astronomical Object
13 Dec 2016
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Kepler"s 3 laws of planetary motion - all found by looking at tycho"s data. Created telescope, which both magnified the image of the astronomical body and made it possible to see fainter objects that couldn"t be seen with the naked eye. Discovered four moons of jupiter and observed that they orbited jupiter, not earth - proved it was possible for a moon to go around a body other than the earth. Observed the changing phases of venus on its orbit; showed the orientation btwn the earth, sun, and venus. Brought the heliocentric model closer to the mainstream. Made clear that the heliocentric model with superior. At the time of galileo"s death, most scientists were becoming convinced by his observations that the heliocentric model and kepler"s laws were correct. Brought firm understanding to the heliocentric model with. Newton"s ideas gave a mathematical framework for what we see in kepler"s laws.
