perigee

noun

1. 1

   The point, in an orbit about the Earth, that is closest to the Earth: the periapsis of an Earth orbiter.

2. 2

   (more generally) The point, in an orbit about any planet, that is closest to the planet: the periapsis of any satellite.

3. 3

   (possibly obsolete outside astrology) The point, in any trajectory of an object in space, where it is closest to the Earth.