Easter dating table
The origins of these names have been traced back to Native America, though they may also have evolved from old England or, as Guy Ottewell, editor of the annual publication Astronomical Calendar, suggests, "writer's fancy.") The first full moon of spring is usually designated as the Paschal Full Moon or the Paschal Term.
Traditionally, Easter is observed on the Sunday after the Paschal Full Moon.
Interestingly, these rules also state that the vernal equinox is fixed on March 21, despite the fact that from the years 2008 through 2101, at European longitudes it actually will occur no later than March 20.
Adding additional confusion is that there is also an "ecclesiastical" full moon, determined from ecclesiastical tables, whose date does not necessarily coincide with the "astronomical" full moon, which is based solely on astronomical calculations.
Pope Gregory XIII decreed this in 1582 as part of the Gregorian calendar.
So according to the current ecclesiastical rules, Easter Sunday in 2012 is to be celebrated April 8.
He writes about astronomy for The New York Times and other publications, and he is also an on-camera meteorologist for News 12 Westchester, N.
But based on the ecclesiastical full moon, it occurred on the same day of the astronomical full moon, April 19!Skywatcher Maxim Senin caught the full moon during the moon's conjunction with Mars, March 7, 2012, in Long Beach, CA.Says he: "Mars, it's round and red/orange, but too blurred to see any features in my telescope." Friday (April 6) brings us the first full moon of the new spring season.In reality, however, as mandated by the rules of the church, Easter 2038 will be observed as late as it can possibly come, on April 25.So in practice, the date of Easter is determined not from astronomical computations but rather from other formulae such as Golden Numbers.