perigee

Tanımlar (İngilizce)

1. isim The point, in an orbit about the Earth, that is closest to the Earth: the periapsis of an Earth orbiter.
2. isim The point, in an orbit about any planet, that is closest to the planet: the periapsis of any satellite.

   “Conjunctions of I and II [Io and Europa] occur when they are near perigee and apogee respectively; conjunctions of II and III [Europa and Ganymede] occur when II [Europa] is near perigee.”

3. isim The point, in any trajectory of an object in space, where it is closest to the Earth.