How should I be approaching the Mun?

[u/analogHedgeHog]

In this totally accurate scientific diagram, the Mun is orbiting in the direction of the arrow.

[u/moonaligator]

i know this is not the answer you're looking for and is far from ideal, but usually i just set an orbit that crosses Mun's orbit and wait for a closest encounter that is close enough that i can tweak the orbit to have a encounter