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perigee    
n. 近地点

近地点

perigee
近地点

perigee
n 1: periapsis in Earth orbit; the point in its orbit where a
satellite is nearest to the Earth [ant: {apogee}]

Perigee \Per"i*gee\, Perigeum \Per`i*ge"um\, n. [NL. perigeum,
fr. Gr. peri` about, near gh^ the earth: cf. F.
p['e]rig['e]e.] (Astron.)
That point, in the orbit of the moon or other body orbiting
the earth, which is nearest to the earth; -- opposed to
{apogee}. It is sometimes, but rarely, used of the nearest
points of bodies not orbiting the earth, such as of a comet,
a planet, etc. Called also {epigee}, {epigeum}.
[1913 Webster PJC]

77 Moby Thesaurus words for "perigee":
Earth insertion, LEM, LM, abutment, abuttal, adjacency,
adjoiningness, aphelion, apogee, apposition, appulse,
astronomical longitude, attitude-control rocket, autumnal equinox,
ballistic capsule, burn, capsule, celestial equator,
celestial longitude, celestial meridian, circle, colures,
conjugation, conjunction, connection, conterminousness, contiguity,
coterminousness, deep-space ship, docking, docking maneuver,
ecliptic, equator, equinoctial, equinoctial circle,
equinoctial colure, equinox, ferry rocket, fuel ship,
galactic longitude, geocentric longitude, geodetic longitude,
great circle, heliocentric longitude, injection, insertion,
junction, juxtaposition, longitude, lunar excursion module,
lunar module, manned rocket, meridian, module, moon ship,
multistage rocket, orbit, parking orbit, perihelion, period,
reentry, rocket, shuttle rocket, small circle, soft landing,
solstitial colure, space capsule, space docking, space rocket,
spacecraft, spaceship, syzygy, trajectory, union, vernal equinox,
zodiac, zone


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  • Lunar Perigee and Apogee - timeanddate. com
    The Moon's orbit around Earth is elliptical The point of the orbit closest to Earth is called perigee, while the point farthest from Earth is known as apogee
  • Perigee and Apogee - Definition, Moon Distance, and Effects
    Perigee and apogee describe the closest and farthest points, respectively, in the Moon ’s elliptical orbit around Earth These positions are part of a broader class of orbital points called apsides, which occur in any elliptical orbit
  • What Are Perigee and Apogee? When Are Perigee and Apogee?
    The point at which it is nearest Earth each month is called its perigee (this varies throughout the year) This is sometimes called a “Supermoon” by the news media because the Moon is slightly larger and brighter
  • PERIGEE Definition Meaning - Merriam-Webster
    The meaning of PERIGEE is the point in the orbit of an object (such as a satellite) orbiting the earth that is nearest to the center of the earth; also : the point nearest a planet or a satellite (such as the moon) reached by an object orbiting it
  • What is a Perigee? (with pictures) - AllTheScience
    When an object orbiting the Earth is at the closest point to the Earth in its orbit, this stage is referred to as perigee By contrast, when the same object is the furthest it can possibly be in in its orbit, it is said to be in “ apogee ”
  • Perigee – Definition Detailed Explanation - Sentinel Mission
    Perigee is a term used in astronomy to describe the point in an object’s orbit around the Earth when it is closest to our planet This phenomenon is most commonly associated with the Moon, as it orbits the Earth in an elliptical path rather than a perfect circle
  • PERIGEE | definition in the Cambridge English Dictionary
    The moon will be at perigee, its closest to the earth, on the 8th of the month Now, astronomers call this a "perigee full moon," which is far less exciting than supermoon A full moon at perigee can appear up to 14 percent larger and 30 percent brighter than a full moon at apogee
  • PERIGEE definition and meaning | Collins English Dictionary
    any of a class of extragalactic objects that emit an immense amount of energy in the form of light, infrared radiation, etc, from a compact source They are extremely distant and their energy generation is thought to involve a supermassive black hole located in the centre of a galaxy
  • What does perigee mean? - Definitions. net
    Perigee is the point in the orbit of a celestial body, such as a moon or a satellite, where it is closest to the Earth It is derived from the Greek words "peri" meaning "near" and "ge" meaning "earth"
  • Perigee | COSMOS - Swinburne
    For the Moon or an artificial satellite body moving around the Earth in an elliptical orbit, the distance between the object and the Earth changes throughout the orbit The point of closest approach to the Earth is known as the perigee (from the Greek peri = near)





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