Astronomers Throughout History

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Presentation transcript:

Astronomers Throughout History

Strongly supported GEOCENTRISM Aristotle (384 – 322 BC, Greece) Strongly supported GEOCENTRISM Earth Earth

Made a list of 48 constellations Ptolemy (after 85 AD-165 AD, Italian ) Developed math to predict the motions of other planets, the distance to the sun, and solar and lunar eclipses. Made a list of 48 constellations

Copernicus (1473-1543, Poland) Heliocentric Model of the Solar System. Sun Be sure to emphasize the HUGE amount of time that has lapsed between Copernicus and Ptolemy. Heliocentric Model of the Solar System.

Galileo Galilei (1564-1642, Italy) Spent the last years of his life under house arrest on orders of the Catholic Church’s Inquisition. This was all because Galileo supported Heliocentrism. Improved the telescope Discovered Jupiter’s four largest moons

Kepler (1571-1630, Germany) Developed Math to describe the motion of the planets. We still use his math today!

This proved heliocentrism once and for all. Sir Isaac Newton (1643-1727, England) Showed that the motions of Earth and of other Celestial Bodies are governed by THE SAME LAWS of gravitation. Invented the reflecting telescope Developed a theory on color based on what he saw from a prism. This proved heliocentrism once and for all.

stellar classification. Annie Jump Cannon (1863 – 1941, USA) was instrumental in the development of contemporary stellar classification.

Henrietta Leavitt catalogued thousands of variable stars in images of the Magellanic Clouds Theory: 'Period-luminosity relationship’ which became an important way of measuring distances in the Universe.

Einstein Formulated the Theory of Relativity which revolutionized (1879 – 1955, Germany & USA Formulated the Theory of Relativity which revolutionized modern astrophysics, Theories of Motione Theories of Magnetism Theories of Gravitation

Hubble played a crucial role in establishing the field of (1889 – 1953) played a crucial role in establishing the field of extragalactic astronomy and is generally regarded as one of the most important observational cosmologists of the 20th century. Hubble Telescope