Geocentric vs. Heliocentric

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What is the Geocentric model?

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The Geocentric model is an astronomical theory that places Earth at the center of the universe, with all other celestial bodies, including the Sun and stars, orbiting around it.

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What is the Heliocentric model?

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The Heliocentric model is an astronomical theory that places the Sun at the center of the solar system, with Earth and other planets orbiting around it.

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Who proposed the Heliocentric model?

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Nicolaus Copernicus proposed the Heliocentric model.

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Who supported Copernicus's Heliocentric model?

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Galileo Galilei supported Copernicus's Heliocentric model.

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What is at the center of the Geocentric system?

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Earth is at the center of the Geocentric system.

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What does the term 'celestial bodies' refer to?

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Celestial bodies refer to natural objects in space, such as stars, planets, moons, and asteroids.

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What was Ptolemy's contribution to astronomy?

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Ptolemy developed the Geocentric model and wrote the 'Almagest,' which described the movements of the planets.

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What evidence did Galileo provide for the Heliocentric model?

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Galileo observed the phases of Venus and the moons of Jupiter, which supported the Heliocentric model.

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What is the significance of the Heliocentric model?

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The Heliocentric model changed the way we understand our solar system and laid the foundation for modern astronomy.

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What is retrograde motion?

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Retrograde motion is the apparent backward movement of a planet as observed from Earth, which is explained by the Heliocentric model.