Daily Archives: February 9, 2014

Historical Astronomers in Context: Galileo Galilei

Galileo Galilei (February 15, 1564 – January 8, 1642) is a mathematician and astronomer most well known for supporting and publishing the heliocentric model, suggested by Copernicus. Galileo helped overturn objections to Copernicus’ model by making discoveries about motion, the imperfectness of things in the sky, and providing evidence that the stars are much farther […] Continue reading

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Historical Astronomers in Context: Isaac Newton

Isaac Newton (December 25, 1642 – March 20, 1727) spent some time working on gravitation and how it affects the orbits of planets. He eventually published the Principia Mathematica, which introduced Newton’s law of universal gravitation, i.e. In September 1666, when Newton was 23 and attending Trinity College, Cambridge (in England), the Great Fire of London… Continue reading

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Historical Astronomers in Context

Johannes Kepler’s contribution to astronomy can be matched by few. The laws of planetary motion appropriately named Kepler’s laws are still used to this day for approximating planetary orbits. His equations and observations gave us insight into the relationship between orbital period and orbital distance. Ultimately, Kepler’s contributions to astronomy played a key role in […] Continue reading

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Astronomers Fitting into the Real Timeline

Tycho Brahe (12/14/1546 – 10/24/1601) was a Swedish noble whose interest in astronomy was aroused during his years of higher education. With his money he was able to build a state-of-the-art observatory as well as many different instruments that enabled him to revolutionize instrumentation and observational habits, as well as record some of the most accurate observations […] Continue reading

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Historical Astronomers in Context – Tycho Brahe

Tycho Brahe (December 14th, 1546 – October 24th, 1601) was the last of the most famous naked eye astronomers. He used his accurate observations made using telescopes to conclude that supernovae were tailless comets that were closer to Earth than the moon. He also concluded that comets passed through the celestial sphere. He threw away the […] Continue reading

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Historical Astronomers in Context – Kepler

Johannes Kepler’s(1571-1630) love for astronomy started at a young age. He had amazing mathematical prowess although challenged by poor vision which limited his ability in astronomical observation. During his prime years, he worked as an assistant to astronomer Tycho Brahe who collected numerous and accurate data of celestial positions in hope of building his own […] Continue reading

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