Perigee vs Apogee - What's the difference?
perigee | apogee | Antonyms |
(astronomy) The point, in an orbit about the Earth, that is closest to the Earth: the periapsis of an Earth orbiter.
* '>citation
(astronomy, more generally) The point, in an orbit about any planet, that is closest to the planet: the periapsis of any satellite.
* 1995 , John H. Rogers, The Giant Planet Jupiter , Cambridge University Press, ISBN 978-0-521-41008-3,
* 2002 , Serge Brunier, Solar System Voyage , Cambridge University Press, ISBN 978-0-521-80724-1,
* 2010 , Ruth Walker and Mary M. Shaffrey et al., Exploring Space: The High Frontier , Jones & Bartlett Learning, ISBN 978-0-7637-8961-9,
(possibly, archaic, outside, astrology) The point, in any trajectory of an object in space, where it is closest to the Earth.
(astronomy) The point, in an orbit about the Earth, that is furthest from the Earth: the apoapsis of an Earth orbiter.
(astronomy, more generally) The point, in an orbit about any planet, that is farthest from the planet: the apoapsis of any satellite.
* 1995 , John H. Rogers, The Giant Planet Jupiter , Cambridge University Press, ISBN 978-0-521-41008-3,
* 2002 , Serge Brunier, Solar System Voyage , Cambridge University Press, ISBN 978-0-521-80724-1,
* 2010 , Ruth Walker and Mary M. Shaffrey et al., Exploring Space: The High Frontier , Jones & Bartlett Learning, ISBN 978-0-7637-8961-9,
(possibly, archaic, outside, astrology) The point, in any trajectory of an object in space, where it is furthest from the Earth.
(figuratively) The highest point.
* 2004 March 22, :
* '>citation
Apogee is a antonym of perigee.
In astronomy terms the difference between perigee and apogee
is that perigee is the point, in an orbit about the Earth, that is closest to the Earth: the periapsis of an Earth orbiter while apogee is the point, in an orbit about the Earth, that is furthest from the Earth: the apoapsis of an Earth orbiter.In astronomy more generally terms the difference between perigee and apogee
is that perigee is the point, in an orbit about any planet, that is closest to the planet: the periapsis of any satellite while apogee is the point, in an orbit about any planet, that is farthest from the planet: the apoapsis of any satellite.In possibly archaic outside astrology terms the difference between perigee and apogee
is that perigee is the point, in any trajectory of an object in space, where it is closest to the Earth while apogee is the point, in any trajectory of an object in space, where it is furthest from the Earth.perigee
English
Noun
(en noun)page 335:
- 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 .
page 36:
- 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).
page 129:
- [Nereid’s] apogee—farthest point from Neptune—is five times the distance of its perigee —its closest point.
Derived terms
* perigee moonAntonyms
* apogeeSee also
* periapsis, periastron, perihelionapogee
English
Noun
(en noun)page 335:
- 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.
page 36:
- 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).
page 129:
- [Nereid’s] apogee —farthest point from Neptune—is five times the distance of its perigee—its closest point.
- The cult of the chief executive reached its apogee in the nineteen-nineties, a period when C.E.O.s seemed not so much to serve their companies as to embody them.