Natural Phenomenon
HILAL Determination of the beginning of the fasting month and Eid al-Fitr is determined by the observation of Hilal, which is a moment when the Moon passes through the conjunction phase (in Arabic: Ijtimak), ie when the Sun-Earth-Moon is in a straight line. Hilal, bulan sabit tipis. When around the ijtima, the Moon cannot be seen from the earth, because the surface of the moon that appears from Earth does not get sunlight, so that the term New Moon is known. In the first evening after the ijtima, the moon sets shortly after the sun sets. Ijtimak is the main guideline for the initial determination of the month in the Hijri Calendar. Hilal itself, when the moon is observed, right after ijtimak, how is the hilal determined? Hilal is determined using two methods, namely Hisab & Rukyat. Hisab, is to determine the position based on calculations, namely from calculating the position of the Sun and the Moon against the Earth. The position of the New Moon is important because...