Here's a breakdown:

* Apoapsis: The point in an orbit where the orbiting object is furthest from the body it is orbiting (e.g., a satellite orbiting Earth).

* Periapsis: The point in an orbit where the orbiting object is closest to the body it is orbiting.

Specific names for apoapsis:

* Apogee: When the object is orbiting Earth.

* Apoapsis: The general term for the furthest point in any orbit.

* Apohelion: When the object is orbiting the Sun.

* Apogalacticon: When the object is orbiting the center of the Milky Way galaxy.

Let me know if you have any other questions!