رؤية الأهلة وتحليل معاييرها لأهلة شهور عام 1429 هـ كنموذج.

Abstract

This research studying dependence the simply visual view to crescent for proving the month entrance and it is exit or using the astronomical telescope, the modern tools, and study the ability usage the astronomical calculates or take on pure view, so that to be complete cover the majority scientists demonstrates in this mater, also discussion the new moons view standards, discussion construct the unified Islamic calendar and it is important in the Islamic world