perilune

Definitions from the Web

noun

1. The point in the orbit of a spacecraft or satellite at which it is closest to the moon.

Sample Sentence: The spacecraft's perilune was a crucial moment during the lunar mission.

noun

2. Astronomy: The point in the orbit of a satellite or a celestial body at which it is closest to the moon.

Sample Sentence: The astronomers observed the moon during its perilune.

noun

3. Navigation: The point of closest approach to the moon in an interplanetary trajectory.

Sample Sentence: The space probe's perilune was carefully calculated to maximize its mission objectives.

noun

4. Space Exploration: The closest distance between a spacecraft and the moon's surface.

Sample Sentence: The lunar module prepared for landing as it reached perilune.

Definitions from WordNet