Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The point in an orbit around the moon where the orbiting body is farthest from the moon.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun astronomy The point of an elliptical lunar orbit where the distance between the satellite and the Moon is at its maximum.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun apoapsis in orbit around the moon

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[apo– + Latin lūna, moon; see lune.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From apo- ("far") + Latin lūna ("moon").

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Examples

  • Period: May 2009* operation: elliptical orbit, 20 km (perilune) at south pole and 100 km (apolune) at north pole* mission: same as phase 2.

    Spaceports 2008

  • While the exact orbit determination will take a couple of hours, the ISRO release gave the nominal orbit parameters as 504 km perilune (the nearest point from the Moon's surface) and 7502 km apolune (the farthest point).

    The Hindu - Front Page 2008

  • In this Lunar Orbit of Injection, the satellite's closest point from the moon (perilune) is 500 km and the farthest point (apolune) is about 7,500 km.

    Top Stories - Google News 2008

  • While the exact orbit determination will take a couple of hours, the ISRO release gave the nominal orbit parameters as 504 km perilune (the nearest point from the Moon's surface) and 7502 km apolune (the farthest point).

    The Hindu - Front Page 2008

  • - Biology, pertaining to selection, especially sexual. apolune

    xml's Blinklist.com 2008

  • At one o’clock in the afternoon Houston time, July 22, a NASA public affairs officer reported that Eagle had achieved lunar orbit, one with an apolune of 47.2 nautical miles and a perilune of 9.1 miles.

    First Man James R. Hansen 2005

  • At one o’clock in the afternoon Houston time, July 22, a NASA public affairs officer reported that Eagle had achieved lunar orbit, one with an apolune of 47.2 nautical miles and a perilune of 9.1 miles.

    First Man James R. Hansen 2005

  • At one o’clock in the afternoon Houston time, July 22, a NASA public affairs officer reported that Eagle had achieved lunar orbit, one with an apolune of 47.2 nautical miles and a perilune of 9.1 miles.

    First Man James R. Hansen 2005

  • At one o’clock in the afternoon Houston time, July 22, a NASA public affairs officer reported that Eagle had achieved lunar orbit, one with an apolune of 47.2 nautical miles and a perilune of 9.1 miles.

    First Man James R. Hansen 2005

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