BIO
Brahe did not buy into Copernicus model of the solar system, and thus created his own. It was a combination of both the geocentric and heliocentric models. The earth remained stationary at the center of the system, with the moon and sun revolving around. But the rest of the known planets then revolved around the sun.
Even if his model seems a little ridiculous to the modern eyes, Brahe's contribution to astronomy and early history of science is non-negotiable. As perhaps the best naked-eye observer with some of the most state of the art equipment, Brahe's astronomical data was the best to date. Yet even that is not is not the full impact of his force. His observations of a supernova and distance calculations of a comet, begin the process of dismantling the Aristotelian dogma. The heaven were NOT unchanging, because both of the celestial events happen far, far outside the lunar sphere. Even the suggestion that the "spheres" were not in fact some kind of celestial "sphere" or "orb" was new; Brahe claimed that the comet would have literally broken through the planetary spheres as it followed its path.
His data and boldness were passed on to an unlikely torch bearer after Brahe's death--Johannes Kepler.
LINKS
Tycho Brahe - Wikipedia
Tycho Brahe - The Galileo Project
Tycho Brahe - Encyclopædia Britannica
Tycho Brahe - Eric Weisstein's World of Science
VIDEOS
