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roche limit.pdf - Roche Limit Why do some planets have...

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Roche LimitWhy do some planets haverings around them?
Roche LimitThe distance from a celestial object(ex:planet) where the tidal forcekeeping particles apart is greaterthan the gravitational forces that tryto pull them apart.
Inside this distance a satellite(moon) cannot form.
[Don’t write this]the force of gravity between only twospherical objects with massesMandm.The important thing to notice is that force isvery strongly dependent on thedistancebetween the objects.
two masses (red and blue) are in the vicinityof a very large mass (yellow).The red and blue masses are still attractedtogether by the force of gravity.However, they are also attracted to the largeyellow mass.
Remember that the force of gravity is verystrongly dependent onthe distance betweenthe objects.Since the red mass is closer to the large yellowmass, it feels a slightly larger gravitationalforce that the blue mass feels.

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Term
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Tags
Solar System, Planet, Neptune, Orbital resonance

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