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Period: 2000 BCE to
time astronomers
bit.ly/3wnDSbM Copernicus
bit.ly/42NSc9C Galileo
bit.ly/42XVlUw Kepler
bit.ly/49ho3Sx Tycho Brahe
bit.ly/3SRUDTT Ptolemy
bit.ly/3OWBLSB Aristotle
bit.ly/3UOkm27 Issac Newton
bit.ly/3SQqDYD Thales of Miletus
(bit.ly/3uAT0SJ](https://bit.ly/3uAT0SJ) Aristarchus
Heracleides of Pontus has no pic -
550 BCE
Thales
Thales using astronomy predicted the weather and a solar eclipse. -
548 BCE
Thales
Thales finds many constellations including Ursa major -
335 BCE
Heraclides
Heraclides proposes the theory the earth rotates on it axis. -
270 BCE
Aristarchus
presented the first known model that placed the Sun at the center of the known universe with the Earth revolving around it. -
264 BCE
Aristarchus
Aristarchus calculated the relative sizes of the Sun, the Moon and the Earth -
8 BCE
Aristotle
Aristotle finds a way to predict the movement of celestial bodies. -
4 BCE
Aristotle
Aristotle contributed a geocentric model for the universe -
140
Ptolemy
Ptolemy translated greek knowledge of the universe into different languages helping make a pathway for astronomy today. -
142
Ptolemy
Ptolemy created a giant star guide of over than 10,000 stars. -
335
Heraclides
Heraclides suggests that the sun rotates around the earth from east to the west -
1510
Copernicus
Copernicus proposed a heliocentric system, that the planets orbit around the Sun. around 1508-1514 -
1543
copernicus
Developed a system for calculating and predicting planetary motions. no known date besides year -
1577
Tycho Brahe
Brahe looks at a comet and determines it is not part of earths atmostphere -
tycho brahe
Tycho Brahe proposed a theory of the solar system. -
galileo
Galileo creates a 30x telescope which he uses to look at the moon and other celestial bodies -
galileo
Galileo discovers the 4 moons of Jupiter showing the power of his new telescope -
kepler
Kepler finds a formula to find out the laws of planetary motion -
kepler
Kepler creates the refracting telescope and the Keplerian telescope which help find new things in outer space. -
Isaac Newton
Newton created the reflecting telescope -
Isaac Newton
Isaac Newton discovers the three laws of motion helping understand the movements of celestial bodies.