Hi, Another question I have, in books and write ups that I've read, often times, there are references to longitude and latitudes to specify the dials/gnomon sizes of sundials.
When I read about longitudes/latitudes in GPS articles, there are loads of different types of projection used. A commonly used one by GPS is called "WGS84". In my GPS, if a point is specified using the wrong projection, it may be way off. What's the commonly used projection system used by Sundial makers to specify locations? Do we need to bother with such accuracy if we can live with 5-10 minute errors? Thx, weemeng -
