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Category Archives: Historical
Gravity
What is Gravity? Gravity is the physical attraction of masses. The idea that all masses attract each other. Why Does Gravity Happen? Gravity happens due to curvature in spacetime, it bends and warps space and that space causes an attraction between the objects. Facts About Gravity Video On Gravity A January Wolf Moon Continue reading
Retrograde Motion
Retrograde motion is a fascinating celestial phenomenon that has puzzled astronomers and stargazers for thousands of years. Imagine you were stargazing across multiple nights and traced the planets as they danced across the sky, but suddenly, one of the planets stops, reverses direction, and then after a while, resumes its original motion with the stars. […] Continue reading
Ancient Structures
Many people have heard about Stonehenge, one of the world’s most famous monuments. But did you know that the circle of stones was actually an astronomical device? Archeoastronomists have debated what the original purpose of Stonehenge was, but many believe that it was used to mark solar and lunar alignments, including eclipses, solstices, and equinoxes. […] Continue reading
Justin's Blog 2024-02-12 17:22:51
History of Astronomy in Korea! Hey everyone ! Do you guys remember when we were learning about historical astronomical sites in class? I remember one of the sites catching my eye because it looked incredibly familiar. It was the one in Korea called Cheonseongdae in Gyeongju, South Korea. I once visited this while on a […] Continue reading
Posted in Class, Historical
Tagged astronomy, blog2, history
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Historical Astronomers in Context
Nicolaus Copernicus – 2/19/1473 – 5/24/1543 Nicolaus Copernicus the first in the modern era (C.E) to develop a model of the universe with the sun at its center, rather than the earth. His work sparked the Copernican Revolution, a paradigm shift which paved the way for the works of Kepler, Galileo, Newton, and others. Copernicus […] Continue reading
Posted in Historical
Tagged astro2110, Copernicus, HW3
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Historical Astronomers in Context
I chose the astronomer Johannes Kepler who was born on December 27th, 1571 in Germany and died on November 15th, 1630 (age 58) in Germany. In the timeframe that Kepler was alive, Shakespeare died, the thirty-year war began, and the protestants began their revolt against the Catholics. Overall this assignment helped me realize more of […] Continue reading
Posted in Historical
Tagged astro2110, HW3, Kepler
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Historical Astronomers in Context
Johannes Kepler (1571-1630) was important to astronomy because he discovered that orbits are not perfectly circular, but move in ellipses. He is credited with three laws that are still heavily used in the study of astronomy. Kepler’s first law is: “The orbit of each planet about the sun is an ellipse with the sun at […] Continue reading
Posted in Historical
Tagged astro2110, HW3, Kepler
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Historical Astronomers in Context
Isaac Newton (B. December 25, 1642 D. March 20, 1727) was important because he was one of the first people to accurately describe mathematically how planetary motion works. He was able to begin to mathematically describe how gravity works and especia… Continue reading
Posted in Historical
Tagged astro2110, HW3, Newton
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Historical Astronomers in Context
Johannes Kepler (Nov. 27, 1571- Nov. 15, 1630) was a German scientist and early astronomer. He was responsible for discovering three major laws of planetary motion: 1. Planets orbit the sun in an elliptical movement; 2. The area law; 3. The harmonic law. He also modified Copernicus’ Sun-centered system to a dynamic universe approach, where […] Continue reading
Posted in Historical
Tagged astro2110, HW3, Kepler, Uncategorized
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Historical Astronomers in Context
TYCHO BRAHE (1546-1601): Tycho Brahe is most famous for making the best observations of stars and planets in his era. He did this at a time without a telescope so he provided the most accurate empirical data of celestial bodies at the time. His documentation of planetary positions helped lead Johannes Kepler to create his […] Continue reading