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ShareAn equatorial bulge is a planetological term which describes a bulge which a planet may have around its equator, distorting it into an oblate spheroid.
Because of a planet's equatorial bulge, its gravitational field is weaker at the equator than at its poles.
For more information about the topic Equatorial bulge, read the full article at Wikipedia.org, or see the following related articles:
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Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Equatorial bulge at Wikipedia.org. See the Wikipedia copyright page for more details.
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