21. The table below gives each satellite's closest approach in its orbit divided by its own Roche limit . 22. The Roche limit is usually considered in relation to natural bodies that are held together by their own gravity. 23. The Roche limit implies that small planets with orbits of a few hours are likely made mostly of iron. 24. If its density is similar to Amalthea's then its orbit would actually lie within the fluid Roche limit . 25. A weaker satellite, such as a comet, could be broken up when it passes within its Roche limit . 26. Additionally, it was within the Roche limit , meaning it might disintegrate due to the Sun's gravity. 27. The moon's material strength and resistence to tensile stress would keep it intact inside it's Roche limit . 28. :That depends on the fluidity of the body, the time it spends and the distance inside the Roche limit . 29. Once the orbit of the Moon closes to a distance of, it will cross the Earth's Roche limit . 30. Indeed, almost all known planetary rings are located within their Roche limit , Saturn's Phoebe ring being notable exceptions.
