In the Parabolic and Hyperbolic trajectory.Is the sun in the focus point of parabola and hyperbola?
Hi IPhO' 2008!
To be more precise, the focus is at the center of mass (CM) of the two objects. If the body on a parabolic/hyperbolic trajectory had a mass comparable to that of the sun, the CM might be outside the surface of the sun.
It might interest you that the CM of the Sun-Jupiter system is outside the surface of the sun by about .12 solar radii = 83,500 km.
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