Description: 潮汐力拉伸天體，使其形狀變長。例如，月球將地球表面的海水拉伸成兩個凸起，這就導致了地球上的潮汐。

任何兩個大質量天體都會對彼此施加潮汐力。質量越大的天體產生的潮汐力越大，而距離越近，潮汐力也越強。這些潮汐力可能強到足以將其中一個天體撕成碎片。

對於特定質量和大小的天體（例如小行星或衛星）來說，當它靠近另一個大質量天體時，在一定的距離範圍內，它會被另一個天體的潮汐力撕成碎片。這個距離被稱為 "洛希極限"。

洛希極限的一個常見例子是圍繞巨行星運行的岩石和冰質衛星。如果衛星與巨行星的距離小於洛希極限，它就會解體，在巨行星週圍形成一個物質環。

在月球和太陽系其他岩石天體上可以看到一連串被稱為 "鍊坑 "的隕石坑，證明瞭經過的小行星在到達洛希極限時解體，導致它們以一串較小的天體的形式撞擊，而不是一個大天體。

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

This is an automated transliteration of the simplified Chinese translation of this term

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