circumlunar
Adjective
Meaning
circumlunar (not comparable)
Surrounding, or traveling around the Moon
Examples
Apollo 13 was close to entering the lunar sphere of gravitational influence (at 61 hours GET), which was the break-even point between direct and circumlunar aborts, and the latter allowed more time for evaluation and planning before a major rocket burn.
It shows a red figure-8 looping around the Earth and Moon representing the mission number as well as the circumlunar nature of the mission.