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This view in the sky is very important for the agricultural calendar and calculating the change of seasons, the Pleiades formed an important pastoral calendar according to its conjunction with the moon during the course of the year. The conjunction of the moon and the Pleiades was used as a marker of time by counting the number of days elapsed between the first of the lunar month (i.e., hilal) and the conjunction, for example arrival of spring is linked to the conjunction of these two on the fifth day of the lunar month, and on this day it was on the day of 15th, and it is linked to the Mid-autumn.