數學上,扁率的定義如下:
R_{e}為赤道半徑;R_{p}為極半徑。近似式對由均勻密度流體組成的行星成立。在這種情形,扁率為萬有引力常數G、自轉週期T和密度\rho的函數。
天体力学 | 代数几何
Сплеснатост | Fladtrykthed | Oblate | Aplatissement | Flattryktheit | Sploščen sferoid | Hình cầu dẹt
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