Authors

10.37652/juaps.2009.15283

Abstract

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