Category Archives: Historical

Historical Astronomers in Context

Isaac Newton (January 4, 1643 – March 31, 1727): Isaac Newton was a pivotal figure in astronomy and physics due to his concepts of the laws of motion and universal gravitation. Newton’s laws of universal gravitation, which were formed from his three laws of motion, state that every particle attracts every other particle with a […] Continue reading

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Historical Astronomers In Context

Galileo Galilei (2/15/1564-1/8/1642) began his important contributions to astronomy with his further development of the telescope. According to Wikipedia, he has many important contributions. One of his notable contributions is the progress he made in observing the moon. He focused on the moon’s craters, valleys, and mountains. He discovered Jupiter’s four largest moons through observing […] Continue reading

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Historical Astronomers in Context

Nicolaus Copernicus Born: February 19th, 1472 Died: May 24th, 1543 Image by: Britannica Nicholas Copernicus was important in astronomy because he opposed the idea that everything revolves around the Earth. He argued that we and all other planets revolved around the sun, not the Earth. He also believed that the orbits of each of the […] Continue reading

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Historical Astronomers in Context

Brittanica Johannes Kepler: December 27, 1571 – November 15, 1630– Kepler was originally hired by Tycho Brahe to do many calculations because brahe was not a profound mathematician. After Tycho’s death, Kepler was able to secure some of his formerly privatized data and observations to develop what would become known as Kepler’s Laws of Planetary […] Continue reading

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Copernicus in Context

Nicolaus Copernicus was born on February 19, 1473 and died on May 24, 1543. Throughout Copernicus’ life, many key historical events took place that altered the state of knowledge and culture at the time. In 1517, Martin Luther posted his 95 Theses on the door of the Castle Church in Germany. His writing criticized the […] Continue reading

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Historical Astronomers in Context

Nicholas Copernicus was an essential figure to the astronomy world because he suggested the concept of the heliocentric model of the solar system. Unlike previous astronomers who believed that planets revolve around Earth, Copernicus postulated that the Sun is at the center of the Solar System and that all the planets, including Earth, revolved about […] Continue reading

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Historical astronomers in context

Johannes Kepler: December 27, 1571- November 15, 1630. Kepler was important to astronomy because he developed three laws of planetary motion. He determined that 1) planets orbit the sun on an ellipse, 2) in an orbit equal areas are swept out in equal times with planets moving faster the closer they get to a gravitational […] Continue reading

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Historical Astronomers in Context

Isaac Newton Isaac Newton’s major life work was his book Principia Mathematica where he detailed his three laws of motion, gravitational law and other astronomical phenomena. He also created Calculus independently of Leibniz. Using his law of gravity, he derived Kepler’s three laws of planetary motion. Historical Events and Figure Scientific Revolution: The Scientific Revolution […] Continue reading

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Historical Astronomers in Context

Johannes Kepler “The diversity of the phenomena of Nature is so great, and the treasures hidden in the heavens so rich, precisely in order that the human mind shall never be lacking in fresh nourishment”-Kepler HISTORICAL ASTRONOMER One of the most fascinating and revolutionary astronomers in history was Johannes Kepler. He was born in Weil […] Continue reading

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Historical Astronomers in Context

Nicolaus Copernicus  —  Born February 19, 1473 | Died May 24, 1543 Copernicus was important to astronomy because he proposed the heliocentric system that explained how planets orbit around the Sun. His central idea was that Earth, in addition to orbiting the sun every year, rotates once daily on its own axis. The slow changes […] Continue reading

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