eccentric anomaly

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The eccentric anomaly of P(x,y) shown as the angle FCP'.


eccentric anomaly (plural eccentric anomalies)

  1. (astronomy, celestial mechanics) The angle PCR formed by P = the periapsis of a celestial body's elliptical orbit, C = the center of that elliptical orbit, and R = the corresponding point to that celestial body (the projection of the celestial body along a direction parallel to the minor axis of its orbit onto the auxiliary circle (a circle which shares a diameter with the major axis of the celestial body's orbit)).

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