Nicolaus Copernicus was a famous astronomer and mathematician who formulated the heliocentric theory, which proposed that the sun was at the center of the solar system. He also made significant contributions to the fields of mathematics, economics, and medicine. Some synonyms for Copernicus include the father of astronomy, the trailblazer of the scientific revolution, the originator of the heliocentric theory, and the Polish astronomer. His contributions to the scientific community have had a significant impact on our understanding of the universe. Copernicus' legacy lives on, making him one of the most influential figures in history.