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noun(astronomy) the point in an orbit closest to the body being orbited
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Definition that contains periapsis
- perigee periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth
- perihelion periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun
- perijove periapsis in orbit around Jupiter
- perilune periapsis in orbit around the moon
- periselene periapsis in orbit around the moon