- Do either of the standstills (N/S) coincide with full/new moon?
- If yes - what is the relationship?
- If no - what factors impact the relationship between the two?
Do lunar standstills (North or South) coincide with full Moon/new Moon/any phase? No.
A standstill occurs when the Moon reaches the northern most declination (or southern) in its orbit. That occurs approximately every 27.3 days.
The phase is related to the position of the Moon relative to the Sun. Since the Sun appears to be moving in the sky, the time from new Moon to new Moon is approximately every 29.5 days.
Because the two periods (27.3 and 29.5 days) are different and not a simple ratio (such as 2 to 1), there is no direct correlation between the standstills and the Moon's phase.