NavList:

David,

Then I think we are in agreement. I've thought of doing the math for calculating the error (it is, after all, just three bodies :-) ), but decided that I'm just too rusty to do the math. So I have actually started doing about the same thing you are: keeping a record and seeing where I end up. Of course, I only get data for 63N,  whch may or may not affect the dependability of the results. I have used it sucessfully above the arctic circle, but did not have the chance to determina actual error (in the woods and comparing to pole star 68 degrees above horizon with no tools...)[1]

We are about 7-8 days before the next oppourtunity to use this method (cloud cover allowing), and I will endevour to  make proper notes: shall we pool data? A WAG gives me the gut feeling that the analemma would indicate the eight times when maximal/minimal error could be expected.

/Pär

[1] Usefull trick: estimate time from moon-determined sun position based on pole star, calibrate "Merak-Dubhe-pole star clock" based on this, and know within 15min when it was 0800 the next morning. Apprently that is either deep magic, scary witchery (or Croc Dundee style cheeting): I still can't really fathom that not everyone does this as a matter of course.