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Lunar perigees and apogees occur during the orbit of the moon (or satellite) around the earth, hence monthly. For any given month, the time of each varies. Roughly each occur once during the month, (one perigee [when the moon is nearest to earth] and one apogee [farthest from earth]) given the orbit of the moon or lunar orbit.

Compare this with perihelion and aphelion having to do with the nearest and farthest orbit of a sphere around the sun, as the reply below addresses.

Curiously (for those of us in the northern hemisphere) Earth's perihelion (closest point of approach to the Sun) occurs in December.

"Perigee" means "closest point of approach to Earth" (peri=close, "gee" for the gravitation of earth), and is only used for things that orbit the Earth. I presumed that you were referring to the Earth's closest approach to the Sun, which is "perihelion". (Peri=close, Helios=the Greek god of the Sun).

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14y ago

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What exactly does perigee mean?

Perigee relates to the orbit of the moon. For example, perigee is defined as the moment when the moon is orbiting "closest" to the Earth. Apogee, the opposite of perigee, is when the moon is orbiting "farthest" away from the Earth.


Give you a sentence for perigee?

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When does the moon reaches its perigee?

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Full moon perigee?

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At what point is the moon closest to earth?

The point at which the Moon is closest to Earth is known as the perigee. This occurs approximately once a month when the Moon reaches its closest point to Earth in its elliptical orbit. This phenomenon is called a "perigee-syzygy."


How far is the earth from the moon at perigee At apogee?

its closer at perigee than at apogee.


What is the lunar perigee?

The side of the orbit of the moon that is closest to the Earth is the lunar perigee.


When the moon is closest to the earth it is at its what?

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What is it called when the moon is bigger than usual?

a "perigee Moon,"


How often does a super moon happen?

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