from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. 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)).
from the GNU version of the Collaborative International Dictionary of English
- adj. See Anomaly.
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