perigee
noun/ˈpɛɹ.ɪ.d͡ʒiː/UK/ˈpɛɹ.ə.d͡ʒi/US
Etymology
From French périgée via Latin perigeum, perigaeum, ultimately from Ancient Greek περί (perí, “near”) + γῆ (gê, “Earth”).
- derived from périgée via Latin perigeum
Definitions
The point, in an orbit about the Earth, that is closest to the Earth
The point, in an orbit about the Earth, that is closest to the Earth: the periapsis of an Earth orbiter.
The point, in an orbit about any planet, that is closest to the planet
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.
- The resolution of the images obtained by this American probe [Messenger] will depend on its altitude [above Mercury] at any one time: about ten meters at perigee (200km altitude), but only one 1 km at apogee (15000km).
- [Nereid’s] apogee—farthest point from Neptune—is five times the distance of its perigee—its closest point.
The point, in any trajectory of an object in space, where it is closest to the Earth.
The neighborhood
- antonymapogee
- neighborperiapsis
- neighborperiastron
- neighborperihelion
- neighborproxigee
Derived
Vish — recursive loop
No curated loop yet for perigee. Loops are being traced one word at a time while the ingestion pipeline matures.
sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA