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kent davidge
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Is it difficult to use Newton's theory of gravity for showing that planet's orbits must be elliptical?
An elliptical orbit is caused by the gravitational pull of a central body, such as a star or planet, on an orbiting object. The strength of this pull depends on the mass of the central body and the distance between the two objects.
Elliptical orbits differ from circular orbits in that they are elongated and have a varying distance from the central body. In contrast, circular orbits are perfectly round and have a fixed distance from the central body.
The shape of an elliptical orbit is determined by the eccentricity, which is a measure of how elongated the orbit is. A higher eccentricity means a more elongated orbit, while a lower eccentricity means a more circular orbit.
Yes, elliptical orbits can change over time due to various factors such as the gravitational pull of other objects, atmospheric drag, and tidal forces. This can result in the orbit becoming more circular or more elongated.
No, not all planetary orbits are perfectly elliptical. While planets generally follow elliptical orbits, factors such as the gravitational pull of other planets and the shape of their orbits can cause slight deviations from a perfect ellipse.