The point in an orbit around the Moon where an orbiting body is farthest from the Moon.
From apo- 'away/far' + -lune from Latin luna 'moon.' Coined in the 20th century by space scientists as the lunar equivalent of aphelion (farthest from sun) and apogee.
When Apollo 10 flew to the Moon in 1969, astronauts experienced both apolune (farthest from the Moon) and perilune (closest)—every lunar mission creates a unique orbital dance.
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