Equatorial bulge
Outward bulge around a planet's equator due to its rotation / From Wikipedia, the free encyclopedia
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For the feature on some of Saturn's moons, see equatorial ridge.
An equatorial bulge is a difference between the equatorial and polar diameters of a planet, due to the centrifugal force exerted by the rotation about the body's axis. A rotating body tends to form an oblate spheroid rather than a sphere.
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