Apogee vs Vertex - What's the difference?
apogee | vertex |
(astronomy) The point, in an orbit about the Earth, that is furthest from the Earth: the apoapsis of an Earth orbiter.
(astronomy, more generally) The point, in an orbit about any planet, that is farthest from the planet: the apoapsis of any satellite.
* 1995 , John H. Rogers, The Giant Planet Jupiter , Cambridge University Press, ISBN 978-0-521-41008-3,
* 2002 , Serge Brunier, Solar System Voyage , Cambridge University Press, ISBN 978-0-521-80724-1,
* 2010 , Ruth Walker and Mary M. Shaffrey et al., Exploring Space: The High Frontier , Jones & Bartlett Learning, ISBN 978-0-7637-8961-9,
(possibly, archaic, outside, astrology) The point, in any trajectory of an object in space, where it is furthest from the Earth.
(figuratively) The highest point.
* 2004 March 22, :
* '>citation
The highest point of something.
(anatomy) The highest surface on the skull.
(geometry) The common point of the two rays of the angle, or its equivalent structure in polyhedra (meeting of edges) and higher order polytopes.
(mathematics) A point on the curve with a local minimum or maximum of curvature.
(graph theory) One of the elements of a graph joined or not by edges to other vertices.
(computer graphics) A point in space, usually given in terms of its Cartesian coordinates.
(optics) The point where the surface of a lens crosses the optical axis.
(nuclear, or, particle physics) An interaction point.
(astrology) The point where the prime vertical meets the ecliptic in the western hemisphere of a natal chart.
As nouns the difference between apogee and vertex
is that apogee is apogee (a point in an orbit around the earth) while vertex is the highest point of something.apogee
English
Noun
(en noun)page 335:
- Conjunctions of I and II [Io and Europa] occur when they are near perigee and apogee respectively; conjunctions of II and III [Europa and Ganymede] occur when II [Europa] is near perigee.
page 36:
- The resolution of the images obtained by this American probe [Messenger] will depend on its altitude [above Mercury] at any one time: about ten meters at perigee (200km altitude), but only one 1 km at apogee (15000km).
page 129:
- [Nereid’s] apogee —farthest point from Neptune—is five times the distance of its perigee—its closest point.
- The cult of the chief executive reached its apogee in the nineteen-nineties, a period when C.E.O.s seemed not so much to serve their companies as to embody them.
Synonyms
* (point in an orbit) apocenter, apoapsis, apsis * (highest point or state) acme, culmination, pinnacle, zenith, climax * See alsoAntonyms
* (a point in an orbit) periapsis * (a point in an orbit around the Earth) perigee * (highest point) nadir, perigee *: perigee is the etymological antonym (from Ancient Greek).vertex
English
(wikipedia vertex)Noun
(en-noun)Synonyms
* (highest point) acme, apex, peak, top * (part of a graph) nodeDerived terms
* vertexal, vertexialSee also
*Mathworld article on vertices of polyhedra*
Mathworld article on verticies of polygons----