Tycho Brahe

One important astronomers of the scientific revolution is a guy named Tycho Brahe .Brahe, who was Danish, spent most of his life observing the stars.In the late 1500s, he charted the positions of more than 750 of them.What he did however was,was less import. Than how he did it.He emphasized the importance of carful observation and detailed,accurate records,Careful recording of info.is necessary so that other scientists can use what he previously been learned.In this way,Brahe made an import. contribution to modern science.
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Johannes Kepler

Brahe was assisted by the German astronomer Johannes Kepler.Later, Kepler tried to map the orbits of the planets.But Kepler ran into a problem.According to his observations, the planet mars did not move In a circle as he expected it to.Kepler knew that Copernicus
Had stated that the orbits of the planets were circular.But Keplers observations showed that Copernicus was mistaken.In 1609 Kepler wrote that Mars- and all other planets- moved in elliptical, or oval