he explains the heliocentric model of our solar system, which states that all planets revolve around the sun in an circular orbit, contrary to aristotles belief, and the supposes belief of the catholic church at the time, being that the earth was the center of the universe!
copernicus
Aristotle said the earth was in the center. Ptolemy supported Aristotle and added to it. Copernicus said the sun was in the middle. Galileo also said the sun was in the center and added to Copernicus.
All the models explain retrograde motion because it is such an obvious phenomenon. In Copernicus's model an outer planet goes into retrograde motion when the inner planet overtakes it so that it appears from the inner planet to be going backwards along the ecliptic.
The gravity of the sun attracts the earth.
Copernicus was not condemned.
His reply was that the earth drags along the atmosphere, including birds as it turns
Edmand Halley. Ancient Greeks maybe, certainly Copernicus and Galileo before Halley.
Copernicus' parents were Nicolaus Koppernigk - of which 'Copernicus' is the Latin form - and Barbara (Watzenrode).
what did nicolaus Copernicus obstacles
Nicholas Copernicus was Polish.
The correct spelling is, indeed, Copernicus.
nicolaus copernicus hometown