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Kepler showed that the orbits of the planets are?
Kepler showed that the orbits of the planets are elliptical, with the Sun at one of the focal points. This discovery led to his laws of planetary motion, which describe how planets move in their orbits.
Why is planet's orbit elliptical in shape?
Because that's the way gravity works. If you take Newton's formula for the forceof gravity, and you have enough geometry and calculus, you can massage theformula around and derive Kepler's three laws of planetary motion. His first lawsays that planets move in ellipses with the sun at one focus. Kepler got that fromTycho's notebooks, where he wrote down the results of years and years of watchingand measuring the positions of the planets. Kepler showed that the ellipse was thebest fit to what Tycho actually saw happening in the sky. Then 100 years later, Newtoncame along and showed, with one simple formula to describe gravity, why orbits mustbe ellipses.
Which of these men stated that planets move around the sun in an ellipse?
Johannes Kepler formulated this idea in his work "Astronomia Nova" in 1609. He described the movement of planets in elliptical orbits with the Sun located at one of the foci.
How do planets move around the solar system?
Objects are attracted to other objects. now this is much more complex than that but I neither have the technical knowledge or time to truly explain all that. So because particles are attracted to each other the more mass an object has the more it pulls or attracts other objects, we call this force gravity. Objects such as planets that are orbiting other things (typically stars due to their massive size) are in a place where the force of gravity is not allowing them to escape but not entirely pulling them in. Stars (like the Sun) and planets form from fast-swirling clouds of dust. When their force of gravity is great enough, the swirls clump together into a spherical ball. That does not make them stop spinning or stop them from orbiting the Sun. We see that there is very little to make the spinning, orbiting planets slow their spins or orbits.
What was the name of the scientist who showed that gravity keeps planets and moons in orbit?
Isaac Newton
His calculations showed that the planets revolve around the sun in elliptical orbits?
Kepler
What was Kepler contribution to astronomy?
He showed that the planets traveled in elliptical orbits
Kepler showed that the orbits of the planets are?
Kepler showed that the orbits of the planets are elliptical, with the Sun at one of the focal points. This discovery led to his laws of planetary motion, which describe how planets move in their orbits.
List two factors that Newton showed combined to keep the planets in their elliptical orbits?
gravity and inertia
How did newton's theories explain why planets orbit the sun and why moons orbit?
Kepler found from observations that the planets move in elliptical orbits. Newton then showed with his theoretical discoveries that the force of gravity from a massive central object produces elliptical orbits in smaller objects. The theories he used were the law of gravity, the laws of motion and the differential calculus. Using these he showed that an object in an elliptical orbit is continuously accelerating towards the central object. Its sideways velocity and mass prevent it from falling directly in.
Who showed that your universe is heliocentricthe planets of the solar system revolve around the sun?
Nicolaus Copernicus
Who was The founder of astronomy showed that earth and other planets move around the sun?
Nicolaus Copernicus.
Who worked out that the planets orbits are flattened circles?
Johannes Kepler, using measured planetary positional data provided by Tycho Brahe, showed that the orbits of the planets were ellipses ("flattened circles"), with the Sun at one focus of the eliipse.
What kind of force there is in orbiting planets?
The planet moves forward in its orbit while being pulled sideways by gravity acting between it and the Sun. Isaac Newton showed that each planets obeys the laws of motion and must follow an elliptical orbit that obeys Kepler's laws when the force of gravity is inversely proportional to the square of distance.
Why is planet's orbit elliptical in shape?
Because that's the way gravity works. If you take Newton's formula for the forceof gravity, and you have enough geometry and calculus, you can massage theformula around and derive Kepler's three laws of planetary motion. His first lawsays that planets move in ellipses with the sun at one focus. Kepler got that fromTycho's notebooks, where he wrote down the results of years and years of watchingand measuring the positions of the planets. Kepler showed that the ellipse was thebest fit to what Tycho actually saw happening in the sky. Then 100 years later, Newtoncame along and showed, with one simple formula to describe gravity, why orbits mustbe ellipses.
Did Galileo believe in the elliptical motion of the planets around the sun?
No, both the systems that Galileo knew about were based on circular motion. The geocentric Ptolemaic system and the heliocentric Copernican system both used complex systems of circles and epicycles to describe the planets' movements, and these models were reasonably accurate. It was Kepler who started to use the idea of elliptical orbits after Tycho Brahe made new and accurate measurements that showed faults in predictions made by the two old systems. Keplers detailed mathematical work was purely descriptive, in that his new model described the planets' positions in the sky more accurately than ever before, but he did not know why his model should be as accurate as it clearly was. Later, Newton produced a new theory explaining why the planets would be expected to move in elliptical orbits under the force of gravity. That is the modern model of the solar system, with slight adjustments after Einstein's general theory of relativity.
Who said the planets traveled in oval orbits?
Everyone from the ancient Greeks on knew that the planets move in oval-type orbits, which were simulated by systems of circles. Later, after years of hard work, Johannes Kepler published the laws of planetary motion in 1618 which showed that the orbits are more accurately represented by ellipses, and each planet has its own ellipse with the Sun at one focus. Ellipses make very good approximations to the actual orbits of planets, but the gravitational effects of the other planets, especially Jupiter, mean that the planets depart slightly from true elliptical orbits. That is taken care of by regular updates to the orbital elements of the planets, which are numbers which describe the sizes and shapes, orientation and inclination of all the planets' elliptical orbits.
