Actually it's hard to get a stable orbit around the moon at all. See https://en.wikipedia.org/wiki/Lunar_orbit#Perturbation_effects https://en.wikipedia.org/wik

Actually it's hard to get a stable orbit around the moon at all. See https://en.wikipedia.org/wiki/Lunar_orbit#Perturbation_effects https://en.wikipedia.org/wiki/Lunar_orbit#Perturbation_effec...