Brahe, Tycho - Internet references.
Brahe, Tycho - outline of his education, achievements, patronage, and more.
Encyclopædia Britannica: Brahe, Tycho - Biographical article.
Eric Weisstein's Treasure Trove of Scientific Biography: Brahe, Tycho - Short article with references.
MacTutor History of Mathematics: Tycho Brahe - Short article of his life and work.
NCAR Sun Edication: Tycho Brahe - Article about the work of the astronomer, and images.
Neft's AstroScientific Tycho Brahe Homepage - Lifehood and his list of days of bad luck, "Tycho Brahian days". Maintained by Flemming Ravn Neft, M.A., B.A.
The Noble Dane: Images of Tycho Brahe - An exhibition at the Museum of the History of Science, Oxford.
Tycho Brahe - About his achievements, life and world system. From the Swedish society Tycho Brahes Glada Vänner.
Tycho Brahe - lecture notes of Michael Fowler from the University of Virginia.
Tycho Brahe - official website - About his life and scientific work. Presented by the city of Landskrona.
Tycho Brahe (1546-1601) - biography of the astronomer from Rice University.
Tycho Brahe and Johannes Kepler - Short biographies. Lecture notes from the course "Galileo and Einstein".
Tychonides - offers a version of the Tycho Brahe calendar sorted by date but not year.