1) Certain orbital points 2) High points 3) Highest points 4) Orbit points 5) Orbital extremes 6) Orbital high points 7) Orbital maxima 8) Orbital points 9) Orbiting points 10) Perigees opposites 11) Points on an orbit Found on https://www.crosswordclues.com/clue/apogees
1) Apexes