If you’ll go look at the night sky, you’ll observe that the stars, moon and the other planets as well as the Sun moves together across the sky, this is called Apparent Daily Motion.
This motion is basically when the astronomical objects appear and move across the sky each and every day.
This is already co mmo n, for the people have been observing this motion for thousands of years.
But, about 25 hundred years ago, astronomers, philosophers and mathematicians started formulating a model for the universe based on this observation of Apparent Daily Motion.
Plato’s a greek philosopher and mathematician who lived between 423 and 347 BC and is momentarily followed by another greek philosopher, Aristotle then couple of hundred years later by greek astronomer, Claudius Ptolemy and together this three astronomers were able to formulate an equally fit functioning model of the universe.
In astronomy, the Geocentric Model (also known as geocentrism, or the Ptolemaic system) is a description of the cosmos where Earth is at the orbital center of all celestial bodies. In this model, they assumed that the Sun, Moon, stars, and naked eye planets circled Earth.
The model below is Aristotle's Geocentric Model of the Universe. In this model, Aristotle showed that the Earth is the at the center of the universe and is surrounded by a series of concentric spheres that represented the paths of the Sun, Moon, and the five planets known at that time. To explain why the distant stars didn't move, Aristotle hypothesized that they were attached firmly to the outermost sphere (what he called "celestial sphere") thus the model was called Geocentric Model.
This motion is basically when the astronomical objects appear and move across the sky each and every day.
This is already co mmo n, for the people have been observing this motion for thousands of years.
But, about 25 hundred years ago, astronomers, philosophers and mathematicians started formulating a model for the universe based on this observation of Apparent Daily Motion.
Plato’s a greek philosopher and mathematician who lived between 423 and 347 BC and is momentarily followed by another greek philosopher, Aristotle then couple of hundred years later by greek astronomer, Claudius Ptolemy and together this three astronomers were able to formulate an equally fit functioning model of the universe.
In astronomy, the Geocentric Model (also known as geocentrism, or the Ptolemaic system) is a description of the cosmos where Earth is at the orbital center of all celestial bodies. In this model, they assumed that the Sun, Moon, stars, and naked eye planets circled Earth.
The model below is Aristotle's Geocentric Model of the Universe. In this model, Aristotle showed that the Earth is the at the center of the universe and is surrounded by a series of concentric spheres that represented the paths of the Sun, Moon, and the five planets known at that time. To explain why the distant stars didn't move, Aristotle hypothesized that they were attached firmly to the outermost sphere (what he called "celestial sphere") thus the model was called Geocentric Model.