According to that same link:
"The lunar phases vary cyclically according to the changing geometry of the Moon and Sun, which are constantly wobbling up and down and exchange altitudes as they rotate around the North Pole."
So, with this in mind, how does it get to be night in the North Pole? They have months of it on end.
If I am understanding this right, then the north pole, being the apparent centre, will always be in daylight