Difference between revisions of "Orbit"
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The orbit of the [[Moon]] is nearly a perfect circle, but due to its high relative weight the center of its orbit is actually closer to the Earth's surface than to than it is to the exact center of the Earth. | The orbit of the [[Moon]] is nearly a perfect circle, but due to its high relative weight the center of its orbit is actually closer to the Earth's surface than to than it is to the exact center of the Earth. | ||
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Revision as of 09:07, April 27, 2007
The orbits of planets observable in Kepler's times were very circular. Comets, on the other hand, have highly eccentric orbits with only one focal point inside the Sun.
The orbit of the Moon is nearly a perfect circle, but due to its high relative weight the center of its orbit is actually closer to the Earth's surface than to than it is to the exact center of the Earth.