| In the modern Tychonian system, Keplerian and Newtonian principles are maintained, as in the heliocentric theory. |
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| By his thirties Copernicus had developed a heliocentric theory of the solar system in a document of a few fruitful pages. |
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| The model universally accepted was Kepler's heliocentric solar system with elliptical orbits. |
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| Shermer points out that Copernicus's heliocentric system was, for scientific and ideological reasons, slow to be accepted. |
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| Now Copernicus' heliocentric theory wasn't exactly new nor was it based on purely empirical observation. |
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| Scientific transactions between east and west also contributed to Copernicus' account of the heliocentric nature of the solar system. |
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| One of the most important of these was the heliocentric theory Copernicus had proposed thirty years earlier. |
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| The dramatic crisis stems from Galileo's enforced abjuration in 1633 of his belief in a heliocentric universe. |
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| Kepler comes under great criticism by the geocentrists because of the great role that he played in the acceptance of the heliocentric model. |
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| These and other observations were nails in the geocentric coffin, making Copernicus's heliocentric universe an increasingly persuasive concept. |
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| He seems to have been an early believer of the heliocentric theory of the solar system. |
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| His heliocentric model resulted in troubling the religious fundies so much that he died finally under house arrest. |
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| Once upon a time, research into the idea of a heliocentric solar system was seen in the same light. |
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| Apart from the above we must also take into account the noncircularity of the Earth's heliocentric orbit. |
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| They have a traditional belief in a heliocentric system and in elliptical orbits of astronomical phenomena. |
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| Astronomers from Copernicus to Kepler had elaborated the heliocentric system of the universe. |
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| In the heliocentric universe conceived by the sixteenth-century astronomer Nicolaus Copernicus, for example, planets orbited the Sun in perfect circles. |
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| Why did the heliocentric astronomical paradigm replace the geocentric one? |
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| One of his greatest achievements, mathematical proof of a heliocentric solar system, continues to be used today as a major argument against the validity of astrology. |
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| Their later published works were not officially recognized by the Church, and they were forced to renounce their heliocentric theories. |
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| In it an advocate for the heliocentric system soundly trounces a proponent of the geocentric one. |
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| Just as the Western church refused at first to accept the heliocentric model of Copernicus, so modern astronomy so far chooses to dismiss this second discovery. |
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| This heliocentric model had been postulated in the third Century B. C., but had not been taken seriously and was ignored. |
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| Born in Poland in 1473, it was the humble astronomer Nicholas Copernicus who challenged the geocentrism of Ptolemy with his own heliocentric universe. |
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| It is plausible to think that Copernicus' introduction of the heliocentric hypothesis had this effect on the previously unchallenged Ptolemaic earth-centered astronomy. |
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| What Copernicus did, that no one had done previously, was work out the mathematical details of the heliocentric model, based on the astronomical data available at the time. |
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| Thus, one may consider a theory such as the heliocentric proposal but only suppositionally. |
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| The works of these scholars anticipated the heliocentric worldview of Nicolaus Copernicus. |
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| During the Renaissance, Nicolaus Copernicus proposed a heliocentric model of the solar system. |
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| Ptolemy's epicycles were replaced by Copernicus's heliocentric system. |
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| The heliocentric view explains the true orbital relationship between the sun and earth and considers the earth's elliptical orbit, its tilt, and the declination angle. |
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| Perturbations on the Earth-Moon radius vector of the lunar motion due to the deviation of the heliocentric motion of the Earth-Moon barycentre from the Keplerian elliptic motion due to the attraction of the planets. |
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| Solar wind speed profile as a function of the heliocentric distance. |
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| From his observations of celestial bodies rotating around a body other than the Earth, Galileo constructed his heliocentric theory placing the sun at the centre of our solar system. |
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| Writing around 1450, Nicholas Cusanus anticipated the heliocentric worldview of Copernicus, but in a philosophical fashion. |
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| Copernicus' 1543 work on the heliocentric model of the solar system tried to demonstrate that the sun was the center of the universe. |
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| As well as proving the heliocentric model, Newton also developed the theory of gravitation. |
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| Riccioli, Grimaldi, and Dechales all described the effect as part of an argument against the heliocentric system of Copernicus. |
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| In the 3rd century BC Aristarchus of Samos was the first to suggest a heliocentric system. |
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| By implication, his work replacing the Ptolemaic system with a heliocentric model was prompted in part by the need for calendar reform. |
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| In the 2nd century BC, the Babylonian astronomer, Seleucus of Seleucia, correctly described the phenomenon of tides in order to support his heliocentric theory. |
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| Through their combined discoveries, the heliocentric system gained support, and at the end of the 17th century it was generally accepted by astronomers. |
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| Galileo subscribed to and defended the Copernican heliocentric worldview, a view that seemed contrary to the Hebrew Scriptures and centuries of Church teaching. |
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| Calvin's views regarding the heliocentric theory of Copernicus have provided much controversy and fodder for the claim of anti-science on the part of the reformers. |
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| In the 3rd century BC, Aristarchus of Samos estimated the size and distance of the Moon and Sun, and was the first to propose a heliocentric model of the solar system. |
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