Definition of Perigee

1. Noun. Periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth.

Generic synonyms: Periapsis, Point Of Periapsis
Antonyms: Apogee



Definition of Perigee

1. n. That point in the orbit of the moon which is nearest to the earth; -- opposed to apogee. It is sometimes, but rarely, used of the nearest points of other orbits, as of a comet, a planet, etc. Called also epigee, epigeum.

Definition of Perigee

1. Noun. (astronomy) The point, in an orbit about the Earth, that is closest to the Earth: the periapsis of an Earth orbiter. ¹

2. Noun. (astronomy more generally) The point, in an orbit about any planet, that is closest to the planet: the periapsis of any satellite. ¹

3. Noun. (context: perhaps archaic except astrology) The point, in any trajectory of an object in space, where it is closest to the Earth. ¹

¹ Source: wiktionary.com

Definition of Perigee

1. the point in the orbit of a celestial body which is nearest to the earth [n -S] : PERIGEAL, PERIGEAN [adj]

Perigee Pictures

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Lexicographical Neighbors of Perigee

perifocal
perifollicular
perifolliculitis
perifungal
perifuse
perifusion
perifusions
perigalactic
perigalacticon
periganglionic
perigastric
perigastritis
perigastrulation
perigeal
perigean
perigee (current term)
perigees
perigemmal
perigenesis
perigenetic
perigeum
periglacial
periglandulitis
periglomerular
periglottic
periglottis
perigon
perigonal
perigone
perigones

Literary usage of Perigee

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Moon: Her Motions, Aspect, Scenery, and Physical Condition by Richard Anthony Proctor (1873)
"It appears, then, that the radial disturbing force causes on the whole a progression of the perigee, while the tangential force does not directly produce ..."

2. The Moon: Her Motions, Aspect, Scenery, and Physical Condition by Richard Anthony Proctor, Lewis Morris Rutherfurd (1892)
"Speaking generally, it may be said that the lunar perigee advances at such a mean rate as to make a complete circuit in about 3232'575 days. ..."

3. Elements of Astronomy by Robert Stawell Ball (1886)
"Motion of the perigee.—To determine the position of the moon's perigee (or the point in its orbit in which the moon is nearest the earth), it is necessary ..."

4. Library of Useful Knowledge: Natural Philosophy (1834)
"Besides this, the times of the sun's motion from apogee to perigee, ... But the sun's apogee and perigee are at the -distance of half the ecliptic from each ..."

5. Practical Astronomy by Peter Smith Michie, Frank Stowell Harlow (1893)
"The Table of Longitudes of perigee.—The longitude of perihelion increased by 180° is the corresponding longitude of perigee. Hence the former being found, ..."

6. An Elementary Treatise on Astronomy: In Four Parts. Containing a Systematic by William Augustus Norton (1853)
"As the sun's angular velocity is the greatest at tjie perigee, the longitude of the sun at the time its angular velocity (is greatest, will be the longitude ..."

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