Motion of the Planets
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He wrote the Almagest which recorded a sophisticating motion for describing the motion of celestial bodies
Ptolemy
His model is very similar to the modern model of the solar system
Nicolaus Copernicus
He represented his model to be perfectly aligned
Aristotle
First person to devise a model that could explain the retrograde motion
Eudoxus
Famous for his heliocentric model
Aristarchus of Samos
Devise the “Homocentric Model”
Eudoxus
It’s a model that contains three concentric spheres
Homocentric Model
Calculated the gravitational force at the leaning tower of piza
Galileo Galilei
Born in December 14, 1546
Tycho Brahe
The word planet derives from the word what? and what is its meaning?
planetes - meaning wanderer
Developed the Geo-Heliocentric Model
Tycho Brahe
Described the 48 Constellations
Ptolemy
In this model, all the planets orbited the sun, but the sun orbited the earth
Geo-Heliocentric Model
He developed the Copernican Heliocentrism and he published it in 1543
Nicolaus Copernicus
He proposed that there are more than 777 fixed stars in the sky.
Tycho Brahe
Who created the Homocentric Model?
Eudoxus
He was born in the renaissance?
Nicolaus Copernicus
His model states that the earth if fixed but other celestial bodies moves
Ptolemy
He studies medicine and created an early prototype of the telescope
Nicolaus Copernicus
He has a background for optical lenses and created the spy-glass
Hans Lippershey
Earth is titled how much on it’s axis?
23.5 degrees
Studies phases of venus
Galileo Galilei
What is the closest planet to the sun?
Mercury
This planet is 11x larger than Earth
Jupiter