![]() When a full Moon falls on the 1st or 2nd of a month, there's an excellent chance that the next full Moon will fall on the 30th or 31st of a month, if the month has that many days. The phrase "once in a blue Moon" didn't enter the popular lexicon because blue Moons are common they're definitely not! Full Moons are separated, on average, by 29.53 days, with a little bit of variation due to speed differentials in the orbits of the Earth and Moon as they revolve. kasabubu of pixabay / public domainġ.) Blue Moon. A blue Moon, however, is when we have two of them in the same month, something that's possible because of how we keep our calendars. The full Moon above the treetops on a mildly hazy night illustrates how disconcertingly bright the. But how rare is it, really, to get a Supermoon, blue Moon, and lunar eclipse all at once? NASA is calling it the "Super Blood Blue Moon." For observers in North America, it's the first time all three of these phenomena will line up since 1866. ![]() And finally, the Moon will fully slip into the Earth's shadow during this time, creating a total lunar eclipse. The full Moon also occurs very close to perigee, where the Moon makes its closest approach to Earth in its elliptical orbit, occurring close enough to create a Supermoon, where the full Moon is up to 14% brighter than average. At 1:30 PM, Universal Time (8:30 AM Eastern / 5:30 AM Pacific), the Moon will reach its full phase for the second time in the month of January, making it a blue Moon. This January 31st, something quite rare and special will happen. While viewers along the East Coast will see only the initial stages of the eclipse before moonset, those in the West and Hawaii will see most or all of the lunar eclipse phases before dawn. Time with “moonset” times for major cities across the U.S., which affect how much of the event viewers will see. 31, 2018 “super blue blood moon” (weather permitting) are depicted in Pacific.
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