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- Apsis - Wikipedia
When used as a suffix—that is, -apsis —the term can refer to the two distances from the primary body to the orbiting body when the latter is located: 1) at the periapsis point, or 2) at the apoapsis point (compare both graphics, second figure)
- APOAPSIS Definition Meaning - Merriam-Webster
The meaning of APOAPSIS is the apsis that is farthest from the center of attraction : the high point in an orbit
- apoapsis - Wiktionary, the free dictionary
apoapsis (plural apoapsides or apoapsises or apoapses) (astronomy) The point of a body 's elliptical orbit about the system 's centre of mass where the distance between the body and the centre of mass is at its maximum
- Chapter 3: Gravity Mechanics - NASA Science
A spacecraft's apoapsis altitude can be raised by increasing the spacecraft's energy at periapsis This can be accomplished by firing on-board rocket thrusters when at periapsis
- Apoapsis | COSMOS - Swinburne
For an object moving in an elliptical orbit about another celestial body, the point of greatest separation is called the apoapsis (from the Greek apo = away from)
- Orbital Nomenclature — Orbital Mechanics Astrodynamics
The terms periapsis and apoapsis are composed of two parts - a prefix indicating the distance from the primary object, and a suffix indicating which astronomical body is the primary
- Understanding Apoapsis and Periapsis: The Extremes of an Orbital Journey
Apoapsis: Apoapsis refers to the farthest point in an object's orbit around its parent body It is the moment when the orbiting object is at its greatest distance from the center of mass of the body it is orbiting
- Apoapsis -- from Wolfram MathWorld
The greatest radial distance of an ellipse as measured from a focus Taking v=pi in the equation of an ellipse r= (a (1-e^2)) (1+ecosv) gives the apoapsis distance r_+=a (1+e) Apoapsis for an orbit around the Earth is called apogee, and apoapsis for an orbit around the Sun is called aphelion
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