Definition, Meaning & Synonyms
apoapsis
noun
ˌæp.oʊˈæp.sɪs
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Definition
The point in an orbit that is farthest from the body being orbited.
![](https://vocabdictionary.com/wp-content/uploads/2024/11/migrate-02.png)
Examples
- In a satellite’s orbit, the apoapsis is the point where it is farthest from the Earth.
- The spacecraft reached its apoapsis before beginning its descent back to the planet.
- During the mission, scientists calculated the apoapsis to optimize fuel usage.
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Meaning
In orbital mechanics, apoapsis refers to the maximum distance between an orbiting body and the central body it orbits around, such as a planet or star.
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Synonyms
- aphelion (in relation to the Sun)
- apogee (in relation to Earth)