I see that the second full moon this month will be on New Year’s Eve. Has this ever happened before?
Lucy Thomson, Lake Forest
A New Year’s Eve full moon is a fairly rare event, but it has happened many times before. The last one was 19 years ago in 1990 and the one before that occurred back in 1971. After this year’s Dec. 31 full moon we will have to wait until 2028, 2066, 2104, 2115, 2134 and 2180 for repeats. By nature of the moon’s 29.5-day cycle, a New Year’s Eve full moon will always be the second full moon of the month. Astronomer Dan Joyce of the Cernan Earth and Space Center at Triton College tells us that the odds are that a full moon will occur twice on a particular calendar date in any 59-year period.