GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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heliocentric model
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geocentric model
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Either A or B
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None of the above
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Detailed explanation-1: -Copernican heliocentrism is the astronomical model developed by Nicolaus Copernicus and published in 1543. This model positioned the Sun at the center of the Universe, motionless, with Earth and the other planets orbiting around it in circular paths, modified by epicycles, and at uniform speeds.
Detailed explanation-2: -Nicolaus Copernicus was a Polish astronomer and mathematician known as the father of modern astronomy. He was the first European scientist to propose that Earth and other planets revolve around the sun, the heliocentric theory of the solar system.
Detailed explanation-3: -But later on Nicholas Copernicus proposed another model called ‘Heliocentric model’ where sun was placed at the center and all the celestial bodies including the earth revolve around it.
Detailed explanation-4: -Galileo knew about and had accepted Copernicus’s heliocentric (Sun-centered) theory. It was Galileo’s observations of Venus that proved the theory. Using his telescope, Galileo found that Venus went through phases, just like our Moon.