First full moon on Christmas since 1977 | Tonight | EarthSky

wordpress haiku #64

a Christmas full Moon / not to be seen again ’til / twenty thirty-four…

Moon phases recur on or near same calendar dates every 19 years. Why didn’t we in North America have a full moon on Christmas Day 19 years ago?

Source: First full moon on Christmas since 1977 | Tonight | EarthSky

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