Definitions for "Stationary point"
the position at which the rate of change of the apparent right ascension (see apparent place) of a planet is momentarily zero.
A geometry at which the first derivatives of the energy with respect to atomic coordinates are all zero. Note that this could correspond to either a minimum or a maximum.
The point where an outer planet changes between direct motion and retrograde motion.
Keywords:  minimizer, global
a global minimizer of f
Keywords:  doesn't, move, point
a point that doesn't move at all