apse line en · NOUN
Meanings
- 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.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| apse lines | Number=Plur | lexicographic |