Apoapsis meaning

ăpō-ăpsĭs
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The point at which an orbiting object is farthest away from the center of mass of the body it is orbiting.
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(astron.) The farthest point from the gravitational center in the orbit of any satellite.
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The point at which an orbiting object is farthest away from the body it is orbiting. This point is sometimes given a name that is specific to the body being orbited. For example, the apoapsis of an object orbiting Earth is its apogee (from gaia , the Greek word for Earth), and the apoapsis of an object orbiting the Sun is its aphelion (from hēlios , the Greek word for Sun). According to Kepler's laws of planetary motion , an object is at its lowest velocity at the apoapsis.
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(astronomy) The point of a body's elliptical orbit about the system's centre of mass where the distance between the body and the centre of mass is at its maximum.
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Origin of apoapsis

  • apo- +‎ apsis

    From Wiktionary