(jusanya) refers to 13 night rotating after a night with a full moon at 13 night and says viewing the moon on September 13 in the old calendar. Also, it is called the “chestnut beautiful moon” (kurimeigetsu) “moon on the thirteenth night of the ninth month” (mamemeigetsu) whereas a month of August 15 calls it the harvest moon in the old calendar because I offer a chestnut and green soybeans at 13 night (I quoted the above from the Internet). The photograph copied the moon which I saw right above my home at about 9:00 of 11 time, and because unfortunately 13 night in this year was on November 1, it was not in 13 night months, and several electric wires disturbed it.