what were the accomplishments of early astronomers
Making the world better, one answer at a time. The early astronomers were Nicolaus Copernicus, Tycho Brahe, Johannes Kepler, Galileo Galileo, and Sir Isaac Newton. Copernicus concluded that Earth is a planet.He proposed a model of the solar system with the sun at the center.Brahe's observations, especially of Mars, were far more precise than any made previously. Kepler discovered three laws of planetary motion.e proposed a model of the solar system with the sun at the center. Brahe's observations, especially of Mars, were far more precise than any made previously. Kepler discovered three laws of planetary motion.