mooning
I found an article from this link: http://news.discovery.com/space/easter-moon-120406.html), it's about the easter moon, or they call it -- the paschal full moon refers to the ecclesiastical full moon of the northern spring used in the determination of the date of Easter. The name "paschal" is derived from "Pascha", a transliteration of the Greek word, which is itself a transliteration of the Hebrew pesach, both words meaning Passover. The date of Easter is determined as the first Sunday after the paschal full moon. This "full moon" does not currently correspond directly to any astronomical event, but is instead the 14th day of a lunar month, determined from tables. It may differ from the date of the actual full moon by up to two days.[1] The use of tables instead of actual observations of the full moon is useful and necessary since the full moon may occur on different dates depending where one is in the world (wikipedia).
Here's an excerpt from the Discovery article (http://news.discovery.com/space/easter-moon-120406.html.)
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. If the Paschal Moon occurs on a Sunday, Easter is the following Sunday. [Photos: Full Moon Captivates Skywatchers in February 2012]
Following these rules, we find that the date of Easter can fall as early as March 22 and as late as April 25. 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.
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. In 1981, for example, the full moon occurred on Sunday, April 19, so Easter should have occurred on the following Sunday, April 26. But based on the ecclesiastical full moon, it occurred on the same day of the astronomical full moon, April 19!
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Oh well. I love staring at the moon.
Here's an excerpt from the Discovery article (http://news.discovery.com/space/easter-moon-120406.html.)
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. If the Paschal Moon occurs on a Sunday, Easter is the following Sunday. [Photos: Full Moon Captivates Skywatchers in February 2012]
Following these rules, we find that the date of Easter can fall as early as March 22 and as late as April 25. 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.
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. In 1981, for example, the full moon occurred on Sunday, April 19, so Easter should have occurred on the following Sunday, April 26. But based on the ecclesiastical full moon, it occurred on the same day of the astronomical full moon, April 19!
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Oh well. I love staring at the moon.
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