Calculating strength gravity over light years

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SUMMARY

The discussion focuses on calculating the gravitational strength between two stars that were initially 2 light years apart and moved 0.5 light years closer over a period of 2 years. The stars experienced a 50% mass loss due to fusion and light during this time. The key question is whether to calculate gravitational strength based on their current mass or their mass from 2 years ago, highlighting the importance of understanding relative mass changes in gravitational calculations.

PREREQUISITES
  • Understanding of Newton's Law of Universal Gravitation
  • Familiarity with concepts of mass loss in astrophysics
  • Knowledge of light year as a unit of distance
  • Basic principles of relative motion in physics
NEXT STEPS
  • Study Newton's Law of Universal Gravitation in detail
  • Research the effects of mass loss on gravitational calculations
  • Learn about the implications of distance changes in gravitational strength
  • Explore astrophysical models of star evolution and mass loss
USEFUL FOR

Astronomers, astrophysicists, and students studying gravitational physics and stellar dynamics will benefit from this discussion.

ensabah6
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How do I calculate the strength of gravity between two objects say that 2 years ago were 2 light years apart, during which they became 0.5 light years closer, if during those two light years, the stars lost 50% mass due to fusion and light,

based on their mass "now", or based on how much mass they had 2 years ago,
 
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ensabah6 said:
How do I calculate the strength of gravity between two objects say that 2 years ago were 2 light years apart, during which they became 0.5 light years closer, if during those two light years, the stars lost 50% mass due to fusion and light,

based on their mass "now", or based on how much mass they had 2 years ago,

That is a Relative question. Which do you want or need to know?
 

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