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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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  • 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 Because the Moon’s distance from Earth changes continuously, perigee and apogee influence how large the Moon appears in the sky, how strong ocean tides
  • Lunar Perigee and Apogee - timeanddate. com
    Lunar Perigee and Apogee By Aparna Kher 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
  • What Are Perigee and Apogee? When Are Perigee and Apogee?
    Learn about lunar perigee and apogee and their what they mean in relation to the Moon's orbit The Old Farmer's Almanac discusses lunar perigee and apogee, and their effect on the tides
  • 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
  • PERIGEE Definition Meaning | Dictionary. com
    PERIGEE definition: the point in the orbit of a heavenly body, especially the moon, or of an artificial satellite at which it is nearest to the earth See examples of perigee used in a sentence
  • Perigee – Definition Detailed Explanation - Sentinel Mission
    Perigee occurs approximately once a month as the Moon completes its orbit around Earth However, the exact timing of perigee can vary due to the Moon’s elliptical orbit and other gravitational influences from celestial bodies like the Sun On average, the Moon is at perigee every 27 55 days, but this can fluctuate slightly from month to month
  • perigee - Wiktionary, the free dictionary
    perigee (plural perigees) (astronomy) The point, in an orbit about the Earth, that is closest to the Earth: the periapsis of an Earth orbiter
  • PERIGEE | definition in the Cambridge English Dictionary
    PERIGEE meaning: 1 the point in the orbit (= curved path) of the moon or a satellite when it it is closest to the… Learn more
  • Perigee - definition of perigee by The Free Dictionary
    Define perigee perigee synonyms, perigee pronunciation, perigee translation, English dictionary definition of perigee perigee n 1 Astronomy The point in an orbit around the planet Earth where the orbiting body is closest to the planet 2 The analogous point in an orbit
  • What does perigee mean? - Definitions. net
    Definition of perigee in the Definitions net dictionary Meaning of perigee What does perigee mean? Information and translations of perigee in the most comprehensive dictionary definitions resource on the web





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