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Explain how Galileo's astronomical discoveries and observati
Transcript of Explain how Galileo's astronomical discoveries and observati
Historical figures in the Copernican Revolution
Explain how Galileo's astronomical discoveries and observations helped weaken the support for the Ptolemaic model
Ptolemy – the geocentric model, that the Earth is at rest at the center of the Universe.
Copernicus – published the heliocentric model.
Galileo – his observations by telescope verified the heliocentric model.
Kepler – deduced empirical laws of planetary motion from Tycho’s observations of planetary positions.
Newton – developed the full theory of planetary orbits.
Craters and mountains on the moon
Moons of Jupiter
Phases of Venus
The Milky Way consists of innumerable stars
Sunspots move across the sun’s face
All of these favored the Copernican (heliocentric) model
The general implications…
The planets are objects like the Earth – masses – rather than some kind of special heavenly objects. Or, to put it another way, the Earth is just another planet.
The planets, including Earth, travel around the sun.
The Universe is a lot bigger than we can see by the naked eye.