MartyConnelly
martyconnelly at shaw.ca
Fri Jan 12 23:12:11 CST 2007
Oh it gets worse. Easter in Slavic countries is a different calculation based on the Julian calendar and Eastern Orthodox methods. This year they both fall on the same date, this happens around every seven years or so. Also their Christmas falls on January 7'th Then there is the Hijri calendar for moveable dates based on a lunar calendar. Stuart McLachlan wrote: >Actually, it's the first Sunday after the first full moon on or after the >northern hemisphere's vernal equinox. > >However, the "full moon" and "vernal equinox" are not the astronomical >ones, they are simplified ecclesiastical ones. > >The standard way to calcuate Easter doesn't use information about full >moons or equinoxes at all. It's called "the algorithm of Oudin" and relies >solely on integer arithmetic on the year number to derive the month and day >of Easter Sunday. > >For all the gory details, see http://aa.usno.navy.mil/faq/docs/easter.html > > > >On 12 Jan 2007 at 14:05, artful at rogers.com wrote: > > > > >>Thanks for that input. But as far as I know the calculation for Easter is >>quite simple. The first Sunday after the first full moon in April. >> >> -- Marty Connelly Victoria, B.C. Canada