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It is slightly elliptical. It is farthest from the sun in winter and in summer and closest in spring and autumn. The seasons are determined as a result of the tilt of the Earth's axis and not the relative distance from the sun.
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Who discovered true shape of the planetary orbits?
Johannes Kepler showed that IF the planetary orbits are elliptical,THEN that would explain the measurements that Tycho Brahe collectedduring his whole life.Isaac Newton showed that IF gravity works the way he thought it does,THEN the planetary orbits would have to be elliptical.Both of these are only theories. They have never been proven.
What is the path planets travel?
Planets travel in elliptical orbits.
Kepler's first law worked where Copernicus' original heliocentric model failed because Kepler described the orbits as?
Copernicus's theory did not fail but it was not as accurate as the Kepler model because it did not include elliptical orbits for the planets, as Kepler's model did. However the data for calculating the elliptical orbits did not become available until well after Copernicus's death so he had no chance of knowing about this change. Copernicus's model which used circles and epicycles was accurate to the standard of the observations that were available to him.
Is a asteroid's orbit elliptical?
Yes. They orbit the Sun and as per Kepler's first law they follow an elliptical path. Do note that a circular orbit is a special type of elliptical orbit.
What is a halley's comet orbit like?
All orbits are ellipses. Some orbits, like the orbit of the Earth around the Sun, are almost (but not quite) circular. Other objects, like the Moon or Mars, have orbits that are more distinctly oval shaped.Comets have elliptical orbits with very high eccentricity; they are stretched so that they come quite close to the Sun, but still go dozens or hundreds of AU away. Some comets are less severely eccentric. Halley's Comet, for example, only goes out to about 30AU with a period of 76 years, while Comet Hale-Bopp has a period of closer to 2200 years.
Is the earths orbits around the the sun highly elliptical or almost circular?
The earths orbit around the sun is almost circular.
Among elliptical orbits are some more circular than others?
Yes some elliptical orbits are more circular than others
Does the moon have a circular or elliptical orbit around the earth?
ALL orbits are elliptical.
Why do people think the earths orbits elliptical?
The only orbitals that are very close to circular are those around a system with two stars. All other orbitals have an oval or elliptical shape
What shape are the planets orbits?
Planetary orbits are usually taught to be circular. However, they are truly more elliptical (oval shaped).
What has elliptical orbits?
As an elliptical orbit is any orbit that isn't perfectly circular, everything has an elliptical orbit. The planets Mercury and Pluto have the most elliptical orbits of the planets, and are easily seen to be oval shaped. Comets also have highly elliptical orbits.
Why your planets revolve in elliptical orbit rather than circular orbit?
Circular orbits are unstable; any outside influence (i.e. other planets) will distort them. Elliptical orbits are self adjusting.
What evidence do you have that the planets move in elliptical orbits around the sun and not in circular orbits?
Elliptical orbits of the planets around the sun actually match what we observe. Newton's Theory of Universal Gravitation states that planets will move around the sun in elliptical orbits.
Is the earths orbit around the sun highly elliptical or almost circular?
The earths orbit around the sun is almost circular.
Who proposed that orbits of the planet are elliptical and the sun is at one focus?
Johannes Kepler in 1619 first realized that planetary orbits were elliptical rather than circular.
Are some elliptical orbits more circular than others?
Yes, true.
Are elliptical orbits circular?
An ellipse is a closed curve that is not circular (the curve is not a constant distance from any point inside of the curve). While some planetary orbits are relatively circular, others are more elliptical, that is having an oval shape with a varying distance from the Sun.
