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Copernicus' Heliocentric theory explains that. Physics & Astronomy
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Physics & Astronomy
Copernicus' Heliocentric theory explains that
2019-11-20 20:57:55
Physics & Astronomy
Venus retrogrades when she overtakes us at inferior conjunction
planetary orbits are elliptical in shape
all planets lie between the Sun and Earth
Mars will retrograde when it reaches a certain position on its epicycle
the Sun lies at one focus of an ellipse
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