A scarlet full moon rises on the evening of Saturday, Sept. 6. The phenomenon of a so-called blood moon occurs during a lunar eclipse, when the Earth’s atmosphere sifts out sunlight waves, rearranging the movement of blue light waves and leaving the moon appearing reddish in color. This eclipse won’t be seen in our area. In the Celtic calendar, it is the “Hazel moon,” appropriate for West Marin, where hazels are now festooned with ripe…