perilune
/ˈpɛrəluːn/
noun
- The point in an orbit around the moon that is closest to the moon's surface.
- The mission plan required a precise burn at perilune to enter a stable orbit.
- The spacecraft will reach its perilune in about three hours.
- At perilune, the lunar module was only 15 kilometers above the moon's surface.
Antonyms