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\nWhy Are Planetary Orbits Elliptical?\n

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\n\nPublisher:\n\nScience ABC\n\n\n
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\nPlanetary orbits are elliptical because gravitational interaction over time changes the delicate balance of mass, velocity and distance from the star which otherwise keeps planetary orbit circular. For a very long time, from Ptolemy to...\nPlanetary orbits are elliptical because gravitational interaction over time changes the delicate balance of mass, velocity and distance from the star which otherwise keeps planetary orbit circular. For a very long time, from Ptolemy to the age of Copernicus, it was widely believed and accepted that planets in our Solar System revolved in a perfectly circular path. Because the circle was presumed to be an ideal shape for planetary bodies to orbit. But then in the seventeenth century in his seminal book Astronomia Nova, Johannes Kepler rebutted this very idea. He put forth his own theory pertaining to planetary motion. He theorized that planetary bodies orbit in an elliptical path with the Sun sitting at one of the foci of that ellipse. In this video we will try to understand what makes these planetary orbits elliptical.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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5:10
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Grade
Pre-K - Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nScienceABC\n\n
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Date
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2020
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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planets, mass, velocity, distance, animation
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Additional Tags

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why are orbits elliptical, elliptical orbits of planets, earth orbital eccentricity, orbital eccentricity of planets, kepler's laws of planetary motion, kepler's first law, why do planets orbit the sun in an elliptical shape, why are planetary orbits elliptical, eccentricity of an ellipse, foci of ellipse, why do planets have elliptical orbits, why do planets move in elliptical orbits, why elliptical orbit, why orbits are elliptical, science, curiosity, solar system, gravitational influence, orbital eccentricity, perfectly circular, circular orbit, extreme ellipse, perfect circle, elliptical path, circular, ellipse, circle, path, elliptical, change, planet, orbits, back, revolve, star, question, closer, halley, comet
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Classroom Considerations

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Best For: Explaining a topic
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