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Aristarchus of Samos

Aristarchus of Samos by Sir Thomas Heath This classic work traces Aristarchus of Samos's anticipation by two millennia of Copernicus's revolutionary theory of the orbital motion of the earth. Heath's history of astronomy ranges from Homer and Hesiod to Aristarchus and includes quotes from numerous thinkers, compilers, and scholasticists from Thales and Anaximander through Pythagoras, Plato, Aristotle, and Heraclides. 34 figures.


Mysterious Aristarchus: Hunting for the man who first got it right. Aristarchus of Samos, born in 310 BCE, pondered the sky and arrived at correct conclusions 18 centuries ahead of everyone else. Aristarchus was a mathematician and astronomer, and the very first person to write and preach that the Sun is the center of the solar system, and that Earth orbits around it while also spinning like a top. To his contemporaries, it must have seemed nothing short of crazy.


Aristarchos (310 BC – 230 BC) was the first thinker to propose the heliocentric theory. He was also responsible for placing the planets in their correct order. Aristarchos’s ideas were generally rejected in favour of those of Aristotle and Ptolemy, who both favoured the geocentric theory. It took over 1800 years for his ideas to be confirmed, (largely because of the resistance of secular and religious authorities) first by the observations of Copernicus, then by the work of Kepler and…


10th century CE Greek copy of Aristarchus of Samos's 2nd century BCE calculations of the relative sizes of the Sun, Moon and the Earth. ~ He supported the heliocentric system, that the Earth travelled around the Sun. A proficient mathematician, he tried to assess the relative distance of the Sun and the Moon from Earth, by measuring the angle between them when the Moon appears exactly as one quarter. current data show that the Sun is about 400 times more distant than the Moon.


Aristarchus of Samos: The Ancient Copernicus. A History of Greek Astronomy to Aristarchus together with Aristarchus's Treatise on the Sizes and ... A New Greek Text with Translation and Notes: Thomas Little Heath: 9781402147906: Books

The Greeks were credited with several important discoveries in astronomy. Aristarchus of Samos (310-230 B.C.) was th e first to suggest that the earth revolved on an axis and moved around the sun. His ideas were not accepted until the 1500’s when Copernicus further developed the theory.

from The Huffington Post

Eight Mind-Blowing Facts About The Sun

Fact #3. Copernicus WASN'T the first to place it in the center of our solar system. In fact, Greek astronomer Aristarchus of Samos proposed the first known heliocentric (sun-centered) model in the third century B.C., nearly 1,800 years before Copernicus did. Portrait of astronomer Nicolas Copernicus, 1580.