单词 | Roche limit |
释义 | Roche limit/rəʊʃ![]() (also Roche's limit) noun Astronomy The distance within which the gravitational field of a large body is strong enough to prevent any smaller body from being held together by gravity.Amalthea is not a rigid body, being inside the Roche limit; but its gravity is more than adequate to hold it together, being 6 times stronger than the forces pulling it apart....
OriginLate 19th century: named after Edouard Albert Roche (1820–83), French mathematician. |
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