Gravitation(angular deflection of a planet from a massive star)

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SUMMARY

The discussion focuses on calculating the angular deflection of a planet approaching a massive star without collision. The user seeks to predict the planet's behavior during this event, utilizing the principles of angular momentum and the Kepler problem. Key concepts include the initial and final perpendicular distances from the star's center and the assumption of perfectly spherical celestial bodies. The conversation emphasizes the need for a mathematical approach to model the planet's trajectory.

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  • Understanding of angular momentum principles
  • Familiarity with the Kepler problem in celestial mechanics
  • Knowledge of orbital parameters and their calculations
  • Basic concepts of gravitational interactions between massive bodies
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  • Research the mathematical modeling of the Kepler problem
  • Explore angular momentum conservation in celestial mechanics
  • Study the effects of gravitational perturbations on planetary motion
  • Learn about numerical simulation techniques for orbital dynamics
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Astronomers, astrophysicists, and students of celestial mechanics interested in understanding planetary motion near massive stars.

ErwinMoses
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i was just thinking , a planet comes close to a very massive star but doesn't collide .how can i calculate the its angular deflection.?

i can calculate the velocity afterwards the deflection(given the initial and final perpendicular distances of its course from center of the star) using angular momentum principle,but how can i predict the behavior of the planet during such an event?

i am considering the planets and stars to perfectly spherical.
no idea how to start.
 
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You can calculate the "orbital" parameters (even if it is not a proper orbit). The motion is a solution of the Kepler problem (=google keyword).
 
thanks.
 

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