Definition
The point in the orbit of a satellite or other body around the Earth at which it is farthest from the Earth's center.
Plain English
The spot in an orbit around Earth where the orbiting object is at its greatest distance from Earth.
Context Anchor
Seen in spaceflight, rocket, satellite, and high-altitude flight discussions.
Derivation
From the Greek 'apo' meaning 'away from' and 'gaia' meaning 'earth.' Literally 'away from the earth' — the part of the orbit furthest from it.
Why Pilots Care
Apogee helps describe the shape and height of a rocket or spacecraft path, which matters for tracking, mission planning, and knowing when the vehicle will begin descending or continue around Earth.
Grounding Statement
Picture a rocket rising away from Earth, slowing near the top of its path, and reaching the farthest point from Earth before what happens next.
Intuition Check
Apogee does not just mean “high.” It means the farthest point from Earth in the object’s path.
Example Sentence 1
The communications satellite reached apogee at roughly 22,000 miles above the Earth's surface.
Example Sentence 2
Mission control tracked the vehicle through apogee to confirm the orbit parameters.