Greco-Roman depictions of Halloween often show a bright full moon in a sky full of enchantress and cricket bat – and this twelvemonth , part of that iconography is correct . The Moon will be bright and full on the eve of All Hallows .
The event will also be aBlue Moon , the name given to the 2d moon in a calendar calendar month . The Moon wo n’t actually deform depressed unless you are close to a volcanic eruption or a wildfire , which can release enough ash tree to give the Moon an strange blue tint . If you are in such a scenario , please get to guard before look at the sky .
low lunar month are rare but not unheard of , hence the locution " once in a depressed moon " . They occur because there are 12.37 lunar revolutions around the Earth every year . This means that every 2.5 to 3 years we get an extra lunar cycle , include an excess full moonlight . A lunar round , also known as a lunation , lasts 29.53 days , so give the fact that October has 31 days , a full Sun Myung Moon that falls on Halloween is always a puritanical moon . However , an alternative definition is the third moon of a time of year with four moons , which would make it inconceivable to have a blue moon on Halloween .
The Moon will be full at 10:49 am EDT ( 2:51 phase modulation UTC ) . You might desire to take a peek , as the full moon on Halloween follows theLunar Metonic cycles/second , which is 235 full moons , so take lieu only every 19 years . The nextHalloween full moonwill occur in 2039 , then 2058 , and 2077 .
However , due to the slim differences in precise timing , leap years , etc , thepattern can break . We had no Halloween full Sun Myung Moon in 2000 , 1982 , or 1963 ( though we did in 1944 ) . Those full moon were always a solar day ahead or behind . Still , the Moon looked large and bright , even if it was not perfectly full .
The last full lunar month we had on Halloween also did n’t fit the 19 - class shape , which occurred on October 31 , 1974 . That means this Full Hunter ’s Moon has been 46 twelvemonth coming . For a very rare consequence , perchance we should come out saying once in a Halloween Blue Moon !