Gravity Collapse on Planets: Physicists' Perspective

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SUMMARY

Gravity collapse primarily occurs in stars due to their significant mass, which allows for nuclear fusion to counteract gravitational forces. In contrast, planets lack the necessary mass for gravitational collapse, as their mass is insufficient to initiate such a process. The minimum mass required for a star to undergo gravitational collapse and potentially form a black hole is estimated to be between 20 to 40 solar masses. This discussion clarifies that planets do not experience gravity collapse in the same manner as stars.

PREREQUISITES
  • Understanding of gravitational forces and their effects
  • Knowledge of stellar evolution and nuclear fusion processes
  • Familiarity with the concept of black holes and their formation
  • Basic astrophysics terminology
NEXT STEPS
  • Research the process of stellar evolution and the lifecycle of stars
  • Study the conditions required for black hole formation
  • Explore the differences between planetary and stellar masses
  • Learn about gravitational forces in astrophysics
USEFUL FOR

Astronomy students, astrophysicists, and anyone interested in understanding the differences between stellar and planetary dynamics in the context of gravity collapse.

Hyperreality
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Why does physicist only talk about gravity collpase on stars?

Doesn't gravity collapse happen to planets? I mean they do not have any process such as nuclear fusion do repell gravity.
 
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I would imagine the mass of planets is much too small. After all, gravity is a very weak force.
 
Tail is correct, the mass of a planet is far, far too small for gravitational collapse to occur IIRC the minimum mass of a star (befiore going supernova) needed to create a black hole is thought to be in the region of 20-40 solar masses (i.e. 20-40 times the mass of our sun).
 

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