English Explanatory Dictionary

apse line

English dictionary entry

Meanings

noun
  1. An imaginary line defined by an orbit's eccentricity vector. For such orbits the apse line is found: for elliptical orbits – between the orbit's periapsis and apoapsis (also known as the major axis) for parabolic and hyperbolic orbits – between the orbit's periapsis and focus.

Word forms

apse line apse lines

Synonyms

apses line apsidal line apsis line line of apsides
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