Equatorial Bulge - Other Celestial Bodies

Other Celestial Bodies

Generally any celestial body that is rotating (and that is sufficiently massive to draw itself into spherical or near spherical shape) will have an equatorial bulge matching its rotation rate. Saturn is the planet with the largest equatorial bulge in the Solar System (11808 km, 7337 miles).

The following is a table of the equatorial bulge of some major celestial bodies of the Solar System:

Body Equatorial diameter Polar diameter Equatorial bulge Flattening ratio
Earth 12,756.28 km 12,713.56 km 42.72 km 1:298.2575
Mars 6,805 km 6,754.8 km 50.2 km 1:135.56
Ceres 975 km 909 km 66 km 1:14.77
Jupiter 143,884 km 133,709 km 10,175 km 1:14.14
Saturn 120,536 km 108,728 km 11,808 km 1:10.21
Uranus 51,118 km 49,946 km 1,172 km 1:43.62
Neptune 49,528 km 48,682 km 846 km 1:58.54

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