The sun and the moon are perfectly calculated.
Translation endnotes
[55:5] The motion of the Sun and Moon follows a very accurate pattern. We can predict their precise locations years ahead of time. Instead of following the hadith that recommends eyewitness testimony of the moon, if people follow God's signs in nature, they will not argue every year about the timing of Ramadan and other holydays. The eyewitness testimony regarding the new Moon has been proven many times to be false. Ironically, the same people who consider astronomic computation to be a Satanic innovation, rely on astronomic computation regarding the times of Sala prayers. Their minds are so distorted with contradictory teachings that they live in a universe of falsehood and contradiction.