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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 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 Are Perigee and Apogee? When Are Perigee and Apogee?
    What is Perigee and Apogee? A simple definition: The point at which it is nearest Earth each month is called its perigee (this varies throughout the year) The point at which the Moon is farthest from Earth each month is called its apogee (this varies throughout the year as well)
  • Apsis - Wikipedia
    When discussing a satellite of Earth, including the Moon, the point of least distance is the perigee ( ˈ p ɛr ɪ dʒ iː ), and of greatest distance, the apogee (from Ancient Greek: Γῆ (Gē), "land" or "earth")
  • 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
  • Lunar perigee 2025: When is the next one? - Space Telescope
    The moon reaches perigee, meaning it reaches the closest point to the earth in its elliptical orbit Here, perigee comes from two words: peri, meaning near , and geo, meaning earth The moon appears 5 to 8% larger than usual when it reaches perigee
  • Apogee and Perigee - GeeksforGeeks
    Perigee, or the closest point to a celestial body that it usually orbits, is the angle measured along the orbital plane from the ascending node to the apogee The orientation of a satellite's closest approach to a celestial body within its orbital plane is defined by this parameter
  • 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 | English meaning - Cambridge Dictionary
    PERIGEE definition: 1 the point in the orbit (= curved path) of the moon or a satellite when it it is closest to the… Learn more
  • Supermoons - NASA Science
    During every 27-day orbit around Earth, the Moon reaches both its perigee, about 226,000 miles (363,300 km) from Earth, and its farthest point, or apogee, about 251,000 miles (405,500 km) from Earth
  • Perigee vs. Apogee — What’s the Difference?
    Perigee refers to the point in the orbit of the Moon or a satellite closest to Earth, emphasizing proximity, while apogee denotes the farthest point, highlighting distance





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