820 Sun x moon33 ideas

moon 33What was Explorer 33? NASA's Explorer 33 was supposed to be the first U.S. spacecraft to orbit the Moon but the second stage accelerated too rapidly. Mission plannersThe 33 year lunar cycle occurs every 33 years. The next 33 year lunar cycle will begin in 2021 and will end in 2054. Is the 33 year lunar cycle useful for predicting eclipses?