>>16705102
Astronomy is very important to Muslims. Not only are prayer times calculated by the position of the sun, there are councils employed to sight the moon with telescopes to indicate the beginning of certain holy days. The phases of the moon are also important, and Muslims employ a lunar calendar to track months. The holiest time of the lunar month, the White Days, are when the moon is in its brightest phase. It is recommended, Sunnah, to fast these days.