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Related to apoapsis: periapsis
n. pl. ap·o·ap·si·des (-ăp′sĭ-dēz′)
The point at which an orbiting object is farthest away from the center of mass of the body it is orbiting.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
the point in an elliptical orbit which is farthest from the object being orbited
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||apoapsis - (astronomy) the point in an orbit farthest from the body being orbited|
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
apogee - apoapsis in Earth orbit; the point in its orbit where a satellite is at the greatest distance from the Earth
aphelion - apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun
apojove - apoapsis in orbit around Jupiter
celestial point - a point in the heavens (on the celestial sphere)
celestial orbit, orbit - the (usually elliptical) path described by one celestial body in its revolution about another; "he plotted the orbit of the moon"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.