• Apogee

    Pronunciation

    • IPA: /ˈæpÉ™dÊ’i/

    Origin

    From French apogée, from Latin apogaeum, apogeum, from Ancient Greek ἀπόγειον (apogeion, "away from Earth"), from ἀπό (apo, "away") + γῆ (gē, "Earth").

    Full definition of apogee

    Noun

    apogee

    (plural apogees)
    1. (astronomy) The point, in an orbit about the Earth, that is furthest from the Earth: the apoapsis of an Earth orbiter.
    2. (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, page 335:Conjunctions of I and II and Europa occur when they are near perigee and apogee respectively; conjunctions of II and III and Ganymede occur when II Europa is near perigee.
      • 2002, Serge Brunier, Solar System Voyage, Cambridge University Press, ISBN 978-0-521-80724-1, page 36:The resolution of the images obtained by this American probe Messenger will depend on its altitude Mercury at any one time: about ten meters at perigee (200km altitude), but only one 1 km at apogee (15000km).
      • 2010, Ruth Walker and Mary M. Shaffrey et al., Exploring Space: The High Frontier, Jones & Bartlett Learning, ISBN 978-0-7637-8961-9, page 129:Nereid’s apogee—farthest point from Neptune—is five times the distance of its perigee—its closest point.
    3. (perhaps archaic except astrology) The point, in any trajectory of an object in space, where it is furthest from the Earth.
    4. (figuratively) The highest point.
      • 2004 March 22, The New Yorker: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.

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