from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The point of an orbit around the moon farthest from the moon's center.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. 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.
- n. apoapsis in orbit around the moon
Period: May 2009* operation: elliptical orbit, 20 km (perilune) at south pole and 100 km (apolune) at north pole* mission: same as phase 2.
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).
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.
- Biology, pertaining to selection, especially sexual. apolune
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.