Monthly Archives: February 2023

Historical Astronomers in Context: Kepler

Posted on February 2, 2023 by dromalley

Johannes Kepler was a German astronomer who was born on December 27 1571 and died 15th of November 1630. During Kepler’s lifetime, one major event was the Bohemian Revolt in 1618, kickstarted by the Third Defenestration of Prague, which launched the Holy Roman Empire into chaos and began the thirty years war. This war caused […] Continue reading →

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Historical Figures in Context

Posted on February 2, 2023 by aaronxu041009

Galileo Galilei, the father of modern science Galileo Galilei (1564-1642) was a famous Italian astronomer with significant contributions to physics, mathematics and astronomy, and was crowned the “father of modern science”. With his refined refracting telescopes, Galileo observed the Moon and deduced that our satellite was covered in mountains and craters, opposing the traditional view […] Continue reading →

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Historical Astronomers in Context

Posted on February 2, 2023 by shuhuaiwang

Johannes Kepler（12/27/1571 – 11/15/1630） In 1609, Keple […] Continue reading →

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Historical Astronomers in Context

Posted on February 1, 2023 by georgeboardman20

Tycho Brahe was an aspiring Danish lawyer when he first became fascinated in astronomy. He was reportedly inspired by a total solar eclipse then later a conjunction of Jupiter and Saturn, which is where his practical advancements in astronomy came from. The Ptolemaian and Copernican models were off by several days on predicting the conjunction, […] Continue reading →

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To Be Circular, or Elliptical: That Was Kepler’s Question

Posted on February 1, 2023 by Europa

Johannes Kepler was an astronomer and mathematician best known for his development of the three laws of planetary motion. The first reflected a major upheaval in astronomical thought at the time: that planetary orbits are elliptical, with the Sun located at one of each orbit’s two foci, rather than perfectly circular. The second is that […] Continue reading →

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Historical Astronomers in Context

Posted on February 1, 2023 by lucasliu6

Introduction to Galileo Galilei Galileo di Vincenzo Bonaiuti de’ Galilei (15 February 1564 – 8 January 1642) He observed the sky with a telescope. With the telescope, he discovered that the moon has mountains, canyons, and craters. He also found the phases of Venus and sunspots. Moreover, he detected the Milky way galaxy which is made up […] Continue reading →

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Historical Astronomers in Context

Posted on February 1, 2023 by berlinbe

Nicholas Copernicus was a Polish astronomer who was born on February 19,1473 and died on May 24, 1543. Copernicus was important to astronomy because he formulated and popularized the idea that the Sun, rather than the Earth, was the center of the “universe.” He also accurately described how Earth’s rotation was the cause of sunrise […] Continue reading →

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Historical Astronomers in Context

Posted on February 1, 2023 by Andrew Cascio

Johannes Kepler: As a young apprentice of Tycho Brahe, Johannes Kepler had years of naked-eye observations to make discoveries with. Between the discrepancies surrounding Tycho’s observations and the Copernican belief that planetary orbits are perfect circles, Kepler surmised that planetary orbits are ellipses. He took his discoveries and named three laws of planetary motion that […] Continue reading →

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Historical Astronomers in Context

Posted on February 1, 2023 by cuia2

Johannes Kepler (Birth date – December 27th, 1571, Death date – November 15th, 1630) Kepler was important to astronomy because he rejected the tens of thousands year old belief that the Earth was the center of the universe and planets orbited in perfect circles. He instead created Kepler’s three laws of planetary motion, which suggest […] Continue reading →

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Historical Astronomers in Context

Posted on February 1, 2023 by zws42

Tycho Brahe (1546-1601) Tycho Brahe was the best naked eye observer of all time. He lived before the invention of the telescope, and therefore had to rely on his vision for all of his observations. He presented a geo-heliocentric model of the solar system in which the sun and moon revolved around Earth but everything […] Continue reading →

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