Easter dating table
As such, the difference for the time of moonrise is noticeably less than the average of 50 minutes per night.
In Sydney, Australia, for instance, the night-to-night difference amounts to just 40 minutes.
[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.(In Miami, located at latitude 26ºN, the average difference is about 67 minutes.) The reason for this seasonal circumstance is that the moon appears to move along the ecliptic (the path the sun takes across the sky), and at this time of year when rising, the ecliptic makes its largest angle with respect to the horizon for those living in the Northern Hemisphere.In contrast, for those living in the Southern Hemisphere, the ecliptic at this time of year appears to stand at a more oblique angle to the eastern horizon.(Traditional names for the full moons of the year are found in some publications, such as the Farmers' Almanac.
We also published the complete list of full moon names here on
A quick study of the table shows that the night-to-night difference is greatest for the more northerly locations.