2020 features first global Halloween Blue Moon since
This year the Harvest Moon was also the Hunter's Moon, again named for rural practices, this time of hunting summer-fattened animals under the light of the moon, which is brighter and lasts longer at this time of year. However, 2020's Harvest Moon is a micro full moon, since it is smaller than usual.The second full moon in any given month is known as the Blue Moon; there are seven every 19 years. The name is something of a placeholder, given in order to keep the year's other full moons in their rightful place. This is because the moon completes 12 full cycles of its phase in 354 days, eleven short of the full solar calendar year of 365 days.This year's is particularly unusual as it is the first full moon to occur across all time zones since 1944, although there is a full moon on Halloween somewhere in the world every 19 years – meaning that the next one to occur will be in 2039, followed by 2058 and 2077.Some traditions count the third full moon in an astronomical season with four full moons as the Blue Moon. Either way, the extra moon is a way of reconciling solar and lunar calendars, much like the extra month of Adar II in the Jewish calendar, which also occurs seven times in a 19-year cycle.In Jerusalem, the Harvest Moon occurred on October 2 at five minutes past midnight; the Blue Moon will occur on October 31 at 4:49 p.m.
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