apogee

apogee \AP-uh-jee\, noun:

1. The point in the orbit of the moon or of an artificial satellite that is at the greatest distance from the center of the earth.
2. The farthest or highest point; culmination.

Example Quotes:

But in retrospect, this period would prove to be the apogee of O'Sullivan's career, although he always felt bigger and better things were on his way.
-- Edward L. Widmer, Young America

Aurangzeb ended the family tradition of building architectural masterpieces that had reached its apogee when his father, Shah Jahan, built the world's most beautiful tomb, the Taj Mahal.
-- Anthony Read and David Fisher, The Proudest Day

Example Sentences:

When the moon is at its farthest point from earth, its orbit has reached its apogee.
-- Brought to you by the 3rd Generation Prius

Apogee is derived from Greek apogaion, from apogaios, "situated (far) away from the earth," from apo-, "away from" + gaia, "earth."