[cmsmith]

It wouldn't be exactly a polar orbit, but slightly offset from one - like a sun-synchronous orbit around the earth

https://en.wikipedia.org/wiki/Sun-synchronous_orbit

[btilly]

Exactly. And since the orbit turns at the same speed as the Moon does, it works.

That is why in the article they offer a map of where the landing could have been and came up with https://hackadaycom.files.wordpress.com/2019/02/moonpossible...

You see the landings on the equator, and also the strip going over the pole.

[haberman]

But what makes the orbit turn? What is accelerating the satellite?

[MPSimmons]

It uses the equatorial bulge to process the orbit.

https://space.stackexchange.com/questions/5312/why-would-sun...