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apse line. In DICTIOUS you will not only get to know all the dictionary meanings for the word
apse line, but we will also tell you about its etymology, its characteristics and you will know how to say
apse line in singular and plural. Everything you need to know about the word
apse line you have here. The definition of the word
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English
Noun
apse line (plural apse lines)
- (astronomy) 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.
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