The point in the orbit of a star or object farthest from the galactic center, analogous to apogee in solar orbits.
From apo- (away from) + galacticum (relating to the galaxy, from galaxías kýklos 'milky circle'). An astronomical term extending the concept of apogee to galactic scales.
Our Solar System is currently approaching apogalacteum—the farthest point from the Milky Way's center—and we'll reach it in about 230 million years, and at that point, the galactic gravity will start pulling us back like a cosmic pendulum.
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