Category Archives: Historical

Historical Astronomers in Context

Johannes Kepler (1571-1630) was important to astronomy because he was a master mathematician and calculator. He worked in conjunction with Tycho Brahe who, through his brilliant eyesight made a lot of readings. Kepler used these readings to make deductions of how the solar system and the universe work. His three laws still hold true today: […] Continue reading

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Historical Astronomers in Context

Johannes Kepler (1571-1630) is important to astronomy because he was the first person to develop laws governing planetary motion. Our understanding of orbital motion is based on the work that Kepler did. The following are events that occurred during Kepler’s life. The British East India Company was founded in 1600. This company heavily influenced British policy […] Continue reading

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Sir Isaac Newton’s World

Sir Isaac Newton was born Christmas day, December 25, 1642 in the small hamlet of Woolsthorpe in the county of Lincolnshire in the English countryside. He lived a full 84 years, in which he revolutionized our fundamental understanding of the universe by discovering his Law’s of Motion, Law of Gravity, and laws of Optics; as … Continue reading Sir Isaac Newton’s World Continue reading

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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 – 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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Historical Astronomers in Context

Nicholas Copernicus (Feb. 19th, 1473- May 24th, 1543) realized that there were many errors in the Earth centered model for the universe.  Copernicus discovered a formula to determine orbital speed based off of distance from the sun.  He published a book describing his Sun centered theory, but it was no more accurate than the Ptolemaic model because […] Continue reading

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Historical Astronomers in Context

For my astronomer, I chose Galileo Galilei.  He was born on February 15, 1564 and died on January 8, 1642. In 1607, Jamestown Settlement was founded in present day Virginia.  This was the beginning of British settlement of North America.  It was the foundation of the colonies that later became the United States of America. In […] Continue reading

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