- The Copernican model held uniform circular motion around the sun, which is at odds with even the crude experimental evidence of the time.
- If the Earth was a high-speed ball flying around the sun, shouldn't we be thrown off the planet? (Note that this is before Newton's law of gravitation)
- To be visible from such a distance, the stars would have to be >1AU in diameter according to the best measurements of the day.
- Some of the more esoteric portions of Copernican model were dangerously close to actual heresy, for example about the nature of matter in an infinite universe.
It should be noted that what saved the heliocentric model was not so much Kepler's elliptical motion but Newton's gravitational theory.
- If the Earth was a high-speed ball flying around the sun, shouldn't we be thrown off the planet? (Note that this is before Newton's law of gravitation)
- To be visible from such a distance, the stars would have to be >1AU in diameter according to the best measurements of the day.
- Some of the more esoteric portions of Copernican model were dangerously close to actual heresy, for example about the nature of matter in an infinite universe.
It should be noted that what saved the heliocentric model was not so much Kepler's elliptical motion but Newton's gravitational theory.