A NEW FORMULA FOR THE PROBABILITY OF SIGHTING THE CRESCENT.

Abstract

This research aims to examine the scientific criteria for the astronomical lunar months to see thecrescent and to find the equation of probability of sighting the crescent. The study of factors linked to the visionof crescent with each other, through the calculation of the date and the age of the moon, and controls theprobability of sighting the crescent by the naked eye (age, and the duration of his stay (Muckth), The angularheight of the horizon, and the angular distance from the sun).