Question: We have read what was published by Al-Madeenah Newspaper, Issue No. 5402 in 4/1402 A.H. that there will be a full lunar eclipse next Saturday. It will start from 8:30 PM and the partial eclipse ends on Sunday at 12:38 PM. The moon comes out from the penumbra of the earth at 1:37 AM. The phenomenon happened exactly as the Newspaper mentioned.
Answer: The times of lunar and solar eclipses are known through calculation of the planet movements by which we can know whether it is full or partial… read more here.