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An apsis is an extreme point in an object's orbit. The word comes via Latin from Greek and is cognate with apse. For elliptic orbits about a larger body, there are two apsides, named with the prefixes peri- (from περί (peri), meaning 'near') and ap-, or apo- (from ἀπ(ό) (ap(ó)), meaning 'away from') added to a reference to the  ...


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 more.


Define perigee: 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…


Definition of perigee - the point in the orbit of the moon or a satellite at which it is nearest to the earth.


The perigee is the point in the orbit of an object circling the Earth when that object is closest to the Earth. The best time to observe the moon is when the moon reaches its perigee.


perigee definition, meaning, what is perigee: the point in the orbit (= curved path) of the moon or a satellite when it it is closest…. Learn more.


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...


Definition of perigee noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.


Perigee definition: the point in its orbit around the earth when the moon or an artificial satellite is... | Meaning, pronunciation, translations and examples.