According to Plato, the Earth was a sphere and the stationary center of the universe. The stars and planets were carried around the Earth on spheres or circles, arranged in the order of distance from the center. These were the Moon, the Sun, Venus, Mercury, Mars, Jupiter, Saturn, fixed stars, and the fixed stars.
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In the 11th and 12th centuries several Andalusian astronomers, centered in the Almohad (Moorish) territory of Spain, challenged the geocentric model of the Universe as well. For instance, 11th century astronomer Abu Ishaq Ibrahim al-Zarqali (aka.
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Historical models of the solar system included a blank model or earth-centered universe and a blank model or sun-centered universe. 1.Geocentric. 2.Heliocentric. 3.Nebular.
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Nicolaus Copernicus (1473-1543) developed a heliocentric model of the universe and in the process initiated the Scientific Revolution. In his model, Copernicus maintained that Earth was not the center of the universe. Instead, Copernicus believed that Earth and the other planets revolved around the Sun.
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For Earth-centered it was  Geocentric Theory proposed by greeks under the guidance of Ptolemy and Sun-centered was Heliocentric theory proposed by Nicolas Copernicus in 16th century A.D. In short, Your Answers are: 1st blank - Geo-Centric Theory. 2nd blank - Heliocentric Theory.
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Astronomy Ch03.7: Process of Science Task: Earth-Centered vs. Sun-Centered Models. Learning Goal: To understand how evidence allows us to distinguish between alternate possible models of the solar system. Imagine that you did not know whether Earth is the center of the solar system (as the Greeks assumed) or just one planet going around the Sun. In this activity, you will consider a set of observations, some real and some not real, that could help you distinguish between the Greek Earth-centered model and our modern Sun-centered model.
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Earth Facts. Earth is the third planet from the Sun and largest of the terrestrial planets. Surprisingly, while it is only the fifth largest planet in terms of size and mass, it is the densest (5,513 kg/m3) of all the planets. Earth is the only planet in the solar system not named after a mythological being.
https://theplanets.org/earth/
This gave rise to the Geocentric model of the universe, a now-defunct model that explained how the Sun, Moon, and firmament circled around our planet. The notion that the Earth was the center of the Universe is certainly an understandable one.
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Brahe placed Earth at the center of the universe, with the Sun and the Moon revolving about it. However, instead of also requiring the other planets to revolve around Earth, in Brahe's model the planets revolved about the Sun as it revolved about Earth (see figure 4).
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A. He showed that planets moved in elliptical orbits. B. He proposed the earth-centered model of the solar system. C. He proposed the sun-centered model of the solar system. D. He proposed that gravity kept the planets in their orbits. Earth Sciences.
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what was the earth centered model
The earth centered model was Ptolemy. Ptolemy was the Earth centered model.