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History of Astronomy Aristotle 380 B. C.
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Earth Centered Universe Stars & everything else orbited earth. Earth-(center) Moon Mercury Venus Sun Mars Jupiter Saturn
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Ptolomy: Greek Astronomer (140 CE—150A.D.)
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Earth Centered Solar System (Ptolomy) Earth-(center) Moon Mercury Venus Sun Mars Jupiter Saturn
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Columbus: Sailor (1492 A.D.) Sailed around the Earth-It was “NOT” square & flat.
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Copernicus: Polish Astronomer (1500 A.D.)
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Sun Centered Solar System (Copernicus) Sun-(center) Moon Mercury Venus Earth Mars Jupiter Saturn
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Tyco Brahe: Danish Astronomer (1550 A. D.) & his Astrolabe
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Johannes Kepler: (German) Oval or Ellipse Orbits Not Circular orbits
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Galileo: Astronomer (1609 A.D.) Italian Another technological device being used.
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Newton: English (1668)
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Jansky 1931--Built the 1 st Radio telescope--better technology
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Sputnic 1957--1 st Satellite Russian--better technology
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Hubble 1924 --1 st Space Telescope 1- showed other galaxies existed beyond the edge of the Milky way; 2- Confirmed that the universe is much larger than our galaxy—that the universe is expanding and an getting bigger.
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