different between periapsis vs apogee
periapsis
English
Etymology
peri- +? apsis
Noun
periapsis (plural periapsides)
- (astronomy) The point of a body's elliptical orbit about the system's centre of mass where the distance between the body and the centre of mass is at its minimum.
Usage notes
In the case of some particular celestial bodies, specialised terms are used.
Synonyms
- pericenter
Antonyms
- apoapsis
Related terms
Translations
See also
- Apsis on Wikipedia.Wikipedia
Finnish
Pronunciation
- IPA(key): /?peri?psis/, [?pe?ri??ps?is?]
- Rhymes: -?psis
- Syllabification: pe?ri?ap?sis
Noun
periapsis
- (astronomy) periapsis
Declension
periapsis From the web:
- what is periapsis and apoapsis
- what does periapsis mean
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- periapsis and apoapsis meaning
apogee
English
Etymology
From French apogée, from Latin apogaeum, apogeum, from Ancient Greek ???????? (apógeion, “away from Earth”), from ??? (apó, “away”) + ?? (gê, “Earth”).
Pronunciation
- IPA(key): /?æ.p?.d?i/
Noun
apogee (plural apogees)
- (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, 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.
- 2002, Serge Brunier, Solar System Voyage, Cambridge University Press, ?ISBN, 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).
- 2010, Ruth Walker and Mary M. Shaffrey et al., Exploring Space: The High Frontier, Jones & Bartlett Learning, ?ISBN, page 129:
- [Nereid’s] apogee—farthest point from Neptune—is five times the distance of its perigee—its closest point.
- 1995, John H. Rogers, The Giant Planet Jupiter, Cambridge University Press, ?ISBN, page 335:
- (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, The New Yorker:
- 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.
- 2004 March 22, The New Yorker:
Synonyms
- (point in an orbit): apocenter, apoapsis, apsis
- (highest point or state): acme, culmination, pinnacle, zenith, climax
- See also Thesaurus:apex
Antonyms
- (a point in an orbit): periapsis
- (a point in an orbit around the Earth): perigee
- (highest point): nadir, perigee
- perigee is the etymological antonym (from Ancient Greek).
Related terms
- (astronomy): see apoapsis
Translations
Latin
Adjective
apog?e
- vocative masculine singular of apog?us
apogee From the web:
- apogee meaning
- what apogee do
- apogee meaning in english
- apogee what does it mean
- apogee what is the definition
- apogee what language
- what is apogee and perigee
- what is apogee and perigee of a satellite
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