A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding
From: Frank Reed
Date: 2017 Apr 14, 15:00 -0700
There are a couple of details here that those of you considering this will want to keep in mind. The beginning of Spring is defined to be March 21 when determining the date of Easter, not the true astronomical equinox. Also the "full moon" is the ecclesiastical (church-defined) simplification of the full moon so it does not correspond exactly to the astronomical full moon in any month. But maybe you could skip the definitions and look up the dates of Easter for a few decades. That's widely tabulated.