His most important work, On the Revolution of Heavenly Spheres , was written entirely by him. He used other's astronomical observations, but wrote the book on his own.
A fellow mathematician, Georg Rheticus, was very helpful in convincing Copernicus to publish his work.
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anex: developing a heliocentric theory
aristotle
Also known as the founder of modern astronomy, Nicolaus Copernicus was the first His work forever changed the place of man in the cosmos; no longer could man, astronomers who came to Copernicus to learn more about his new theory.
Nicolaus Copernicus' father was a merchant, and his mother was the daughter of a (wealthy) merchant. As they lived in the 15th century, they fit "appropriately" into society of the time and the locale (Royal Prussia) where they resided. This almost certainly means that Copernicus' mother did not "work" or have a "professional" life, per se.
Answer this question…Before he proposed his heliocentric theory, most Europeans believed that the sun revolved around Earth.