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Aristarchus developed a sun centered solar system, similar to our present model. His moon was smaller than ours, and not as far away. I think he estimated that the sun was something less than 20 million miles away--although he did believe it was larger than the earth.
http://www.physics.purdue.edu/astr263l/SStour/history/
What else can I help you with?
According to the three laws of planetary motion planetary orbits are in the shape of an?
According to Kepler's laws of planetary motion, planetary orbits are in the shape of an ellipse with the Sun at one of the foci.
What is the similarities do the movements of the planets share?
They all obey Kepler's 3 laws of planetary motion.
What scientists developed three laws of planetary motion?
Silicon Sandy
The truse shape of planetary orbits was discovered by who?
The true shape of planetary orbits was discovered by Johannes Kepler in the early 17th century. He formulated three empirical laws, now known as Kepler's Laws of Planetary Motion, which describe the motion of planets in the Solar System. These laws are as follows: The orbit of each planet is an ellipse with the Sun at one of the two foci. A line joining a planet and the Sun sweeps out equal areas during equal intervals of time. The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.Kepler's Laws of Planetary Motion provide a mathematical description of the motion of planets in the Solar System and explain why planets move in elliptical orbits around the Sun.
Purpose of using epicycles and deferents to explain the motion of the planets in the night sky was to account?
Epicycles and deferents were used in early models of the universe to accurately predict the positions of planets in the sky without fully understanding the heliocentric model. They were an attempt to explain the apparent retrograde motion of planets without the advanced knowledge of elliptical orbits.
Who used mathematics to explain the laws of planetary motion?
Kepler
Which student of Plato developed the system of concentric spheres that became the epicycles of the Ptolemaic astronomical system?
Eudoxus of Cnidus, a student of Plato, developed the system of concentric spheres in his attempt to explain planetary motion and the movements of the stars. This system later influenced the Ptolemaic astronomical model, which incorporated epicycles to account for observed planetary motion.
How many laws of planetary motion did Johannes Kepler discover?
3 laws' of planetary motion
According to the three laws of planetary motion planetary orbits are in the shape of an?
According to Kepler's laws of planetary motion, planetary orbits are in the shape of an ellipse with the Sun at one of the foci.
Who figured out the laws of planetary motion?
Keplar figured out the laws of planetary motion using Tycho Brahe's data.
What was Brahe's major contribution?
He is credited with the most accurate astronomical observations of his time, and the data was used by his assistant Kepler to derive the laws of planetary motion.
What was tycho brahe major?
He is credited with the most accurate astronomical observations of his time, and the data was used by his assistant Kepler to derive the laws of planetary motion.
What is the similarities do the movements of the planets share?
They all obey Kepler's 3 laws of planetary motion.
Why did Tyco Brahe need Johannes Kepler?
Actually, it was the other way around. Johannes Kepler needed Tyco Brahe's detailed records of the paths of the planets in order to verify his theories regarding planetary motion. Tyco's observations were the most accurate at the time, so Kepler sought him out.
What is the relation between newton law and palantry motion?
Newton's laws of motion describe how objects move in response to external forces, while planetary motion refers to the motion of planets in space under the influence of gravitational forces. Newton's law of universal gravitation helps explain the motion of planets in their orbits around the sun by describing the gravitational attraction between celestial bodies.
Who discovered the planetary motion?
Johannes Kepler
What did Kepler formulate?
His laws of planetary motion.
