* The Moon orbits the Earth, not the Sun. So, talking about the distance between the Sun and Moon in Astronomical Units (AU) isn't really meaningful.

* An Astronomical Unit (AU) is defined as the average distance between the Earth and the Sun. It's used to measure distances within our solar system.

To give you some context:

* The Earth-Moon distance is about 0.0026 AU.

* The Sun-Earth distance is 1 AU.

Therefore, the distance between the Sun and Moon is essentially the same as the Sun-Earth distance (1 AU) plus or minus the small Earth-Moon distance (0.0026 AU). Since the Earth-Moon distance is so small compared to the Sun-Earth distance, the difference is negligible.