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Questions and Answers
According to Kepler's first law, which shape describes the orbit of a planet?
According to Kepler's first law, which shape describes the orbit of a planet?
Why are the foci of an ellipse important in planetary orbits?
Why are the foci of an ellipse important in planetary orbits?
What type of axis does an ellipse have?
What type of axis does an ellipse have?
In terms of shape, what distinguishes elliptical orbits from circular orbits?
In terms of shape, what distinguishes elliptical orbits from circular orbits?
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Which astronomer developed three laws to describe planetary motion?
Which astronomer developed three laws to describe planetary motion?
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How does the sun's position differ in an elliptical orbit compared to a circular orbit?
How does the sun's position differ in an elliptical orbit compared to a circular orbit?
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What term describes the oval shape of most modern-day planetary orbits?
What term describes the oval shape of most modern-day planetary orbits?
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Which factor determines how elongated or circular an orbit appears?
Which factor determines how elongated or circular an orbit appears?
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"Oort cloud" is related to which concept described in the text?
"Oort cloud" is related to which concept described in the text?
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The long axis of an ellipse corresponds to which astronomical element?
The long axis of an ellipse corresponds to which astronomical element?
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