To test Copernicus\'s model, Tycho took meticulous measurements of the positions

Question

To test Copernicus's model, Tycho took meticulous measurements of the positions of the planets, and he hired Kepler to interpret the data. Kepler found that the geocentric model did not accurately predict the planets positions, but neither did Copernicus's heliocentric modei, He found that Copernicus's insistence that the planets orbits were perfectly circular was the problem. If the orbits were instead ellipses, then the helioce Kepier's first aw of planetary motion ntric model would have been able to very accurately predict the positions of the planets. This is known as Vew the Astro pier's Laws and then choose the statements below that are correct Choose one or more A The eccentricity of Mars's orbitinera D EWiptikal orbits cause a planet to sometimes be closer to and sometimes farther away from the Sun T he Sun is located at one too us of a planet's elliptical orbit, and the planet is located at the other focus. D. TheSun is located at the center or a planet's elliptical orbit. EHleys Comet has a highly eccentricorbit S 08-10 >

Explanation / Answer

Q) Choose the statements below that are correct:

Ans. B. Elliptical orbits cause a planet to sometimes be closer to and sometimes further away from the Sun.

This is because planets rotate around the Sun in an elliptical path and the Sun is at one focus. So, sometimes it is closer to the Sun and sometimes farther away from the Sun.

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