Title: Tycho Brahe
Content:   Although Tycho admired Copernicus and was the first to teach his theory in Denmark, he was unable to reconcile Copernican theory with the basic laws of Aristotelian physics, that he considered to be foundational. He was also critical of the observational data that Copernicus built his theory on, which he correctly considered to have a high margin of error. Instead, Tycho proposed a "geo-heliocentric" system in which the Sun and Moon orbited the Earth, while the other planets orbited the Sun. Tycho's system had many of the same observational and computational advantages that Copernicus' system had, and both systems also could accommodate the phases of Venus, 
Title: Tycho Brahe
Content:  Although Tycho's planetary model was soon discredited, his astronomical observations were an essential contribution to the scientific revolution. The traditional view of Tycho is that he was primarily an empiricist who set new standards for precise and objective measurements. This appraisal originated in Gassendi's 1654 biography, Tychonis Brahe, equitis Dani, astronomorum coryphaei, vita. It was furthered by Johann Dreyer's biography in 1890, which was long the most influential work on Tycho. According to historian of science Helge Kragh, this assessment grew out of Gassendi's opposition to Aristotelianism and Cartesianism, and fails to account for the diversity of Tycho's activities.
Title: Tycho Brahe
Content:  He took an interest in astronomy and in the creation of more accurate instruments of measurement. As an astronomer, Tycho worked to combine what he saw as the geometrical benefits of Copernican heliocentrism with the philosophical benefits of the Ptolemaic system into his own model of the universe, the Tychonic system. His system correctly saw the Moon as orbiting Earth, and the planets as orbiting the Sun, but erroneously considered the Sun to be orbiting the Earth. Furthermore, he was the last of the major astronomers to work without telescopes. In his De nova stella (On the New Star) of 
Title: Tycho Brahe
Content:  Tycho Brahe (born Tyge Ottesen Brahe; 14 December 1546 – 24 October 1601) was a Danish astronomer, known for his accurate and comprehensive astronomical observations. He was born in Scania, which became part of Sweden in the next century. Tycho was well known in his lifetime as an astronomer, astrologer, and alchemist. His has been described as "the first competent mind in modern astronomy to feel ardently the passion for exact empirical facts". Most of his observations were more accurate than the best other observations available then. An heir to several of Denmark's principal noble families, Tycho received a comprehensive 
Title: Tycho Brahe
Content:  The first biography of Tycho, which was also the first full-length biography of any scientist, was written by Gassendi in 1654. In 1779, Tycho de Hoffmann wrote of Tycho's life in his history of the Brahe family. In 1913, Dreyer published Tycho's collected works, facilitating further research. Early modern scholarship on Tycho tended to see the shortcomings of his astronomical model, painting him as a mysticist recalcitrant in accepting the Copernican revolution, and valuing mostly his observations that allowed Kepler to formulate his laws of planetary movement. Especially in Danish scholarship, Tycho was depicted as a mediocre scholar and a traitor to the 
Title: 1599 in science
Content: January 31 – During an observation of the lunar eclipse, Tycho Brahe discovers that his predictive theory about the movement of the Moon is wrong since the eclipse started 24 minutes before his calculations predicted: he improves on his theory. ; March 21 – Tycho sends a letter to Longomontanus, in which he reports his revised theory. ; June 14 – Tycho leaves Wittenberg and moves to Bohemia where he has been offered residence at the castle of Benátky, recently bought by Rudolf II, the Holy Roman Emperor. ; July 22 – Tycho observes a solar eclipse from Prague. 
Title: Tycho Brahe
Content:  about the fixed nature of the sky beyond the Moon. He also realized that the comet's tail was always pointing away from the Sun. He calculated its diameter, mass, and the length of its tail, and speculated about the material it was made of. At this point, he had not yet broken with Copernican theory, and observing the comet inspired him to try to develop an alternative Copernican model in which the Earth was immobile. The second half of his manuscript about the comet dealt with the astrological and apocalyptic aspects of the comet, and he rejected the prophesies of his competitors; instead, making his 
Title: Light Fantastic (TV series)
Content:  The second episode explores the link between the development of practical tools that manipulate light and the emergence of new ideas. The subject is examined through the work of Tycho Brahe; Galileo; Vermeer; Robert Hooke; William Herschel; Ole Rømer; Charles Darwin and Ernest Rutherford. Brahe was granted the island of Hven by Denmark's Frederick II. From here he observed a comet in 1577. Tycho's measurements proved it was further away than supposed thus challenging the Church's traditional view that God had created the Earth at the centre of the Universe.
Title: Tycho Brahe
Content:  on current observational data was a day off. He realized that more accurate observations would be the key to making more exact predictions. He purchased an ephemeris and books on astronomy, including Johannes de Sacrobosco's De sphaera mundi, Petrus Apianus's Cosmographia seu descriptio totius orbis and Regiomontanus's De triangulis omnimodis. Jørgen Thygesen Brahe, however, wanted Tycho to educate himself in order to become a civil servant, and sent him on a study tour of Europe in early 1562. 15-year old Tycho was given as mentor the 19-year-old Anders Sørensen Vedel, whom he eventually talked into allowing the pursuit of astronomy during the tour. Vedel and his pupil left 
Title: Uraniborg
Content:  The observatory was not just the home of scientists, but it also supported the artisans who constructed the tools that the scientists needed. Tycho Brahe was an innovative astronomer of his time. Within the Uraniborg observatory, he utilized innovative observing methods and built new instruments to improve the accuracy of his readings. Brahe's goal to gather accurate data on the cosmos influenced the creation of a wide range of contraptions to prove his theories on the celestial positions and a geo-heliocentric (Tychonic) model of the solar system, a theory that the earth is the center of the sun and moon while the sun is also the center of the other planets. He upsized his instruments; 

Question: what was tycho brahe theory?
Answer: Brahe's astronomical investigations began to suggest that the existing literature on the solar system was inaccurate.