The Blue Moon Periods

There is always a lot of talk about the Blue Moon periods. This is a period when there are two Full Moons in one month. This is supposed to occur once every two years. At first, when friends would inquire about the Blue Moon, I would casually state that it was nothing more than two Full Moons in one month… PERIOD.

As I experienced the energies the events that occurred during a Blue Moon month, I realized that there was an excess of amplified lunar energies such as would be found in a Crisis Full Moon period. In May of 1988, I wrote an that I was trying to suppress “homicidal tendencies,” especially when anything would go wrong. Never again did I say that there was nothing to a Blue Moon period. So, with any Moon period, know that you are not crazy— it is the Lunar Phenomena. Know that there are dynamic forces in the cosmos hitting you and be assured that these feelings are normal.

In May 2007, the entire month of May seemed like Mercury was retrograde. If anything could go wrong, it did… but Mercury does not turn Retrograde until June 15! Because of the time zone differences, Europe will experience its Blue Moon month in June.

What is a Blue Moon? Full moons are separated by 29.5 day intervals— the moon’s Synodic Period. By counting out synodic intervals, and checking to see when a pair of full moons falls into a single 30- or 31-day month, we can easily and precisely figure out when the next blue moon is due: December 2009 and November 2010.

  • The Lunar Synodic Period is the time between successive New Moons or 29.5 days.
  • The Lunar Sidereal Period is the time it takes the Moon to complete one orbit around the Earth with respect to the stars or 27.3 days. The Sidereal Period of the moon is measured watching its motions against the background stars.

Why are they different?

While the Moon orbits the Earth, the Earth orbits the Sun. Start at New Moon: Sun-Moon-Earth aligned. It takes the Moon 27.3 days to complete 1 orbit around Earth with respect to the stars. In the meantime, the Earth has moved through 27.3 days of its orbit (about 27deg along its orbit). The Moon & Earth must move together for an extra 2.2 days to re-align with the Sun.

Astronomy 161:

Moon Phases from 2007-2015 (Universal Time)

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