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Can the sun be "outside" of the parabola of a parabolic orbit, but its focal point inside? Personally, I don't see a problem with this case, I was just curious and wanted to ask a quick question

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    $\begingroup$ Orbits are elliptical. An object on a parabolic path goes by the sun one time and never returns. $\endgroup$ – David White May 4 at 15:38
  • $\begingroup$ @DavidWhite - if the object trajectory tries to go through part of the sun, then part of the sun is outside the orbit. Not good for the object, mind you... $\endgroup$ – Jon Custer May 4 at 15:42
  • $\begingroup$ an answer here has plots of possible orbits, where the center of gravitational field is in a focal point of the conic sections physics.stackexchange.com/questions/229249/… $\endgroup$ – anna v May 4 at 16:06
  • $\begingroup$ @DavidWhite By a parabolic orbit I was meant to say an orbit with an eccentricity of e=1; this is a parabolic trajectory, perhaps I didn't phrase my question correctly $\endgroup$ – Hidden Eagle1 May 4 at 16:09
  • $\begingroup$ The only way the focal point can be "outside" the curve is if there is a repulsive force between the two objects. That is possible for two electrically charged particles, of course. $\endgroup$ – alephzero May 4 at 16:42

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