Apastron - definition of apastron by The Free Dictionary
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The point at which an object is farthest away from the center of mass of the star it is orbiting.
References in periodicals archive
After the simulation has completed one orbit, the screen displays the precession per orbit and an integer that counts the passages through apastron (maximum separation).
Red lines connect the central body to the apastron points.
Adding a test to the program, I had it print the coordinates of Jack each time it reached its far point from the sun, called apastron
. The results are plotted in the lower diagram on page 79.